The huge, octopus-like Kroll lived deep in
the swamps of the humid, steamy planet.
To the native swamp-warriors, Kroll was
an angry, mythical god. To the money-
grabbing alien technicians, Kroll was a
threat to a profit-making scheme.
In their search for another segment of the
Key to Time, the Doctor and Romana have
to face the suspicion of the Lagoon
dwellers, the stupidity of the technicians
and, finally, the power of Kroll...



THE POWER OF KROLL is a novel in
the Key To Time Sequence. Also available
THE RIBOS OPERATION, THE STONES OF
BLOOD and THE ANDROIDS OF TARA.

Coming soon:
THE ARMAGEDDON FACTOR




 UK: £1·35 *Australia: $3·95
 Malta: £M1·30c
 *Recommended Price
                      ISBN 0 426 20101 9
 Children’s Fiction
       DOCTOR WHO
         AND THE
      POWER OF KROLL
Based on the BBC television serial by Robert Holmes by
arrangement with the British Broadcasting Corporation



             TERRANCE DICKS




              A TARGET BOOK
                 published by
           The Paperback Division of
            W. H. Allen & Co. Ltd
A Target Book
Published in 1980
by the Paperback Division of W. H. Allen & Co. Ltd.
A Howard & Wyndham Company
44 Hill Street, London W1X 8LB

Copyright © 1980 by Terrance Dicks and Robert
Holmes
‘Doctor Who’ series copyright © 1980 by the British
Broadcasting Corporation

Reproduced, printed and bound in Great Britain by
Cox & Wyman Ltd, Reading

ISBN 0 426 20101 9

This book is sold subject to the condition that it shall
not, by way of trade or otherwise, be lent, re-sold, hired
out or otherwise circulated without the publisher’s prior
consent in any form of binding or cover other than that
in which it is published and without a similar condition
including this condition being imposed on the
subsequent purchaser.
CONTENTS

Prologue
1 The Swamp
2 The Gun-Runner
3 The Sacrifice
4 The Tunnel
5 The Thing in the Lake
6 The Attack
7 The End of Harg
8 The Storm
9 Escape Through the Swamps
10 The Rocket
11 Countdown
12 The Power of Kroll
Epilogue
                      Prologue

Deep beneath the waters of the immense lagoon, Kroll
slept.
       He lay dormant, as he had lain for hundreds of
years, buried in the thick nutritious sediment that
covered the bottom of the lake.
       His feeding tentades radiated out from the great
bulbous body, absorbing nourishment like the
spreading roots of some enormous tree.
       The years passed by, and still Kroll slept. His
body-cells mutated, transformed by the strange power-
source he carried deep within him. Kroll grew to
colossal, unimaginable size. Yet still he slept.
       Above him, the People of the Lakes paddled
silently through the marshes in their canoes, and
worshipped the image of Kroll in their temples—
though none still living had seen him.
       One day great changes came to Kroll’s lagoon.
Men came in rocket ships, and unloaded strange
machines. They built a structure of towering steel on
the very edge of Kroll’s lagoon. Its waters were
disturbed by the sound of their machinery, a thudding
vibration that penetrated even the depths where Kroll
had slept so long.
       Kroll woke—and found that he was hungry.
Prompted by some long-dormant instinct, Kroll began
his long slow rise.
       There was life on the surface—and to Kroll, all life
was food.
                         1
                    The Swamp

It was a world of water.
      Lagoons the size of seas covered most of its
surface, so that the swampy, low-lying land masses were
in constant danger of flooding. Water streamed from
perpetually overcast grey skies, in rain showers which
ranged from the mildest drizzles to torrential
downpours. Even when it wasn’t raining, water seemed
to hang in the air in an ever-present haze.
      It was no place for men—but men lived there all
the same.
      The shuttle craft touched down on the Refinery’s
tiny landing pad, discharged its solitary passenger and
his bulging travel-bag, and took off as if it couldn’t wait
to get away again.
      Thawn stood looking for a moment at the
Refinery. It was built on a steel-legged platform high
above the waters of the lagoon. There were gleaming
metallic domes and towers; a maze of intake pipes that
coiled down from the processing plant and disappeared
beneath the lagoon, prefabricated plasti-steel cabins
forming the control area and living quarters.
      Thawn stood for a moment, drawing in deep
breaths of the local air. It hadn’t changed. Warm,
moisture-laden, the perpetual hint of rotting vegetation.
He smiled. It was good to be back.
      He was a tall, heavily built man, with broad
shoulders, long arms and enormous hands. His big-
jawed, heavily moustached face gave him a rather
menacing look. He stood for a moment longer, looking
at the Refinery—his Refinery. Then he picked up his
travel-bag, walked over to the little dock, where a
number of canoe-like craft were moored. Thawn tossed
his bag in the nearest and paddled out to the Refinery
platform.

Inside the Refinery itself, there were bright lights, metal
walls, air conditioning, the perpetual throb of
machinery. Thawn made his way to central control, a
semi-circular metal-walled chamber lined with
instrument banks, dominated by the central console
with its radar and viewing screens.
      His crew were waiting for him. They hadn’t
changed either. Fenner, dark, round-faced with a look
of irritable gloom, as though he had some perpetual
grudge against life. Dugeen, young and eager, yet with
an air of nervous tension. Harg, amiable enough, but
often quiet and withdrawn.
      Thawn himself tended to be silent and
uncommunicative, so they weren’t exactly a happy band
of brothers. But they were all expert at their jobs and
they worked well together, an efficient team. Like
Thawn, they wore the blue and white uniforms of the
Government Scientific Service.
      As usual, Dugeen sat hunched over his radar
screen.
      Fenner was checking instrument readings, and he
looked up as Thawn came in. ‘Hello, Controller. Saw
you land. How did things go on Delta Magna?’
      ‘Very well.’ Thawn smiled briefly, as if at some
private thought. ‘Very well indeed. It was a useful trip.
Place is getting very crowded, though. You notice that,
after a few months here.’
      Delta Magna was their home world, a bustling,
heavily industrialised planet. Reasonably Earth-like, it
had been one of the first to be colonised. Now, like
Earth itself, it was over-developed to the point where its
teeming population was running out of both space and
food. Hence this Refinery.
      Thawn fished inside his travel-bag and handed a
small parcel to Harg. ‘Here you are, your micro-
cassettes. I got you the whole library, all five hundred
books.’
      ‘That’s marvellous, sir. How much do I owe you?’
      ‘Don’t worry, we’ll work it out later.’
      Fenner touched a button, and a humanoid
shuffled into the room. He wore a simple uniform of
coarse, grey material, and his skin was green. His name
was Mensch, and he was a Swampie, one of the
planetoid’s native inhabitants. None of the four men in
the room spared him a glance.
      Mensch was carrying a tray of plastic cups. Fenner
nodded towards it. ‘Care for a drink?’
      ‘Thanks.’ Thawn took one of the cups, drained the
fiery local brandy in a gulp, shuddered and tossed the
cup back on the tray. ‘Out!’ he barked. The Swampie
scuttled away, and stood watching in the doorway.
      ‘Hey!’ said Dugeen suddenly. ‘What’s going on
here?’
      Fenner looked round. ‘What’s the matter, did you
want a drink too?’
      Dugeen shook his head impatiently. ‘There’s
something odd on my radar, a sort of echo track.’
      ‘Check it again,’ said Fenner indifferently.
      ‘I’ve checked. I’ve checked it five times. Look!’
      The others drifted over to the radar screen.
      ‘Here, look at this. I’ll play it back for you.’
      Dugeen touched a control and a spot of light
moved slowly across the screen. ‘That’s you coming in,
Controller, about twelve miles out. Now, look, this is
where the other track starts to show.’
      Suddenly a smaller spot of light separated from
the first, streaked off on a different course, and
disappeared off the edge of the screen.
      ‘What do you think it is?’
      ‘I think you were followed here, sir. Someone used
your radar track as cover, and split off at the very last
minute.’
      ‘It’s another ship all right,’ said Fenner slowly. ‘It
must have landed in the swamp somewhere.’
      Dugeen looked up at Thawn. ‘The scanners were
set to monitor your ship’s approach to the pad, sir. Any
secondary plot was irrelevant.’
      ‘But who’d risk it?’ asked Harg. ‘Nothing out there
but swamp and wasteland anyway.’
      Thawn said abruptly, ‘Now listen to me all of you.
This could be serious. When I was on Delta Magna, I
got a warning from Government Intelligence. The Sons
of Earth are planning to arm the Swampies.’
      Fenner groaned. ‘There are times I could well do
without the Sons of Earth.’
      ‘Couldn’t we all,’ said Harg wearily.
      The Sons of Earth were a well-organised pressure
group back on Delta Magna. They took the view that
man, having hopelessly polluted his native Earth, was
going on to repeat the same process on a variety of
other worlds. Delta Magna itself was already in danger.
Now the scientists and technicians were spreading their
attentions to its moons, and in particular to this one.
      The Sons of Earth were of the opinion that this
process should be stopped; they were getting
increasingly militant about the ways in which it should
be done.
      Delta Three was a sore point with them, because of
the Swampies.
      Originally, the Swampies had been the native
inhabitants of Delta Magna itself. When swarms of
colonising Earthmen had over-run their planet, the
Swampies had been shipped off to one of its satellites.
Delta Three was a desolate watery planetoid, then
thought to be useless. The Swampies had been de-
ported there, much as the Red Indians of Earth had
been sent off to reservations in America. They had been
promised that the little world should be theirs, and
theirs alone. But the scientists on Delta Magna had
found a use for Delta Three after all, and the Refinery
had been set up. If it was successful, there would be
more refineries and still more, until Delta Three was as
industrialised as Delta Magna itself, and the Swampies
would be homeless once again.
      It was not a point which greatly concerned most of
those in the control centre. Thawn in particular had
been the driving force behind the Refinery scheme in
the first place. He had done the preliminary survey, and
persuaded the Government to set up the scheme. Now
his career as a scientist depended on its success.
      In Thawn’s view, the Swampies were no more than
obstacles in the way of progress. Even the mild-
mannered Harg seemed to agree with him. ‘Arm the
Swampies? Oh, but surely nobody would give guns to
those savages?’
      No one so much as glanced at the Swampie servant
in the doorway.
      Thawn said sternly, ‘Don’t you believe it. Those
savages are getting a lot of sentimental support back on
Delta Magna. Oh, the Government public relations
people are putting a lot of effort into giving a more
balanced picture... But you’ve got to remember, most
people on Delta Magna have never even seen a Swam-
pie. You can imagine the sort of thing that’s being said.
“Noble savages” deprived of their homelands for the
second time.’
      ‘Even so, sir, it’s unthinkable,’ protested Harg. ‘If
the Swampies were given guns, it could lead to them
attacking the Refinery.’
      ‘That’s exactly what it would lead to,’ said Thawn
grimly.
      Dugeen said, ‘But the Sons of Earth have always
condemned violence, Controller. Surely they wouldn’t
be likely to arm the Swampies?’
      ‘I’m not so sure. There was also an Intelligence re-
port that Rohm Dutt’s ship had vanished from Port
Elevedor. All stations have been told to keep a look out
for him.’
      ‘Rohm Dutt? He’s a gun-runner, isn’t he?’
      ‘That’s right,’ said Fenner.
      ‘Do you really think that it was his ship that
followed Controller Thawn?’
      ‘I don’t know,’ said Fenner slowly. ‘But if it is him,
he’ll be heading for the main Swampie Settlement. He’ll
have to go into the swamps.’
      Thawn didn’t seem very worried. ‘Well, in that
case he may never reach the Settlement at all.’
      Fenner said agitatedly, ‘I think we ought to go and
look for him, sir, try to cut him off. If he is bringing
guns for the Swampies, we’re all in very great danger.’
      ‘All right, Fenner, if you like. But you know how
big those swamps are—and how dangerous. Even if it is
Rohm Dutt—he probably won’t reach the Settlement
alive.’
      ‘Still, we’d better take a look, Controller. Even if
the Swampies kill him and take the guns, the results will
be the same as far as we’re concerned.’
      Thawn yawned, and stretched. ‘All right, all right.
We’ll take the hovercraft.’
      Fenner hurried away, and Thawn followed him.
      Thawn had been curiously unperturbed by the
whole incident, thought Dugeen. Usually any threat to
his beloved Refinery had him in an instant rage...
      No, thought Dugeen, there was something very
odd about Thawn’s reaction...

There was a wheezing groaning sound in the swamp,
and a square blue police box appeared on top of a little
hillock of firm ground. The door opened and a tall
curly-haired man came striding out. He wore a
comfortably loose jacket, an immensely long trailing
scarf, and a battered old soft hat with a very wide brim.
Behind him was a dark-haired, elegantly beautiful girl,
in trousers and a bright orange tunic. Both wore high
waterproof boots against the ever-present mud. The tall
man was that mysterious traveller in Time and Space
known as the Doctor, the girl his companion, a Time
Lady called Romana.
      They had come to Delta Three on a mission that
affected the safety of the entire universe.
      They were looking for one of the missing segments
of the Key to Time.
      The Doctor and Romana had been given a vital
mission by the White Guardian, one of the most
powerful and mysterious beings in the cosmos.
      Long ago, the Key to Time had been split into six
parts. They were scattered to different parts of the
universe, in order to prevent so powerful an object
falling into the hands of any one being.
      Now the balance of the cosmos was being
threatened by the evil Black Guardian, and only the
Key to Time could restore it. The Doctor and Romana
had been despatched to find the six missing segments
and assemble them once more.
      The task was complicated by the fact that the
segments had many strange powers, including that of
transmutation. They could look like virtually anything,
from a jewelled pendant to an enormous statue.
      To assist them in their task, the Doctor and
Romana had been given the Tracer, a slender wand-like
device with a number of extraordinary powers. Plugged
into the TARDIS console, it could lead them, one by
one, to the widely scattered planets in which the
segments could be found.
      Once they arrived, the Tracer could be detached
and used like a kind of mine-detector, leading them to
the exact spot where the segment could be located.
Finally, when touched by the Tracer, the segment
reverted to its true form—a large irregularly shaped
chunk of crystal.
      Romana was looking around her with an
expression of pronounced distaste. They were in the
middle of a swamp. There was nothing to be seen but
miles and miles of reed-beds stretching in every
direction, broken up by hundreds of meandering
streams, some wide, some narrow, and the occasional
muddy track.
      Here and there were little clumps of higher
ground, like the one they were standing on now. The
sky was grey, everything was damp and soggy. It had
obviously just been raining, and it looked as if it was
going to rain again at any moment. There was no sound
except the mournful sighing of the wind in the reed-
beds, and the occasional gurgling and sucking of the
swamp.
       Just ahead of them a channel, wide enough to be
called a river, cut through the marshes.
       ‘Really, Doctor! Was it absolutely necessary to land
in the middle of a quagmire?’
       The Doctor was studying the marshy landscape
with cheerful interest. ‘Told you it was going to be
swampy. Anyway, it’s not my fault. Or the TARDIS’s, is
it, old girl?’ He gave the police box a consoling pat.
‘Looks as if these marshes go on for miles and miles.
Still, a little water never hurt anybody.’
       ‘Try telling that to K9. He’s marooned now, poor
old chap.’
       K9 was the Doctor’s other companion. In
appearance a kind of robot dog, K9 was in reality a
mobile self-powered computer. He had all kinds of
extra-ordinary powers, but the one thing he couldn’t
cope with was water. Damp had a disastrous effect on
his circuits.
       ‘Never mind,’ said the Doctor cheerfully. ‘With any
luck we won’t be here long enough to need K9.’ He
threw his hat in the air, and studied its fall.
       Romana stared at him. ‘What are you doing,
Doctor?’
       ‘Gravity check,’ said the Doctor with dignity.
‘Escape velocity about one point five miles per second.’
       ‘Really? That’s a bit low for a planet, isn’t it?’
      ‘Yes. We’re on a planetoid, one of the moons of
Delta Magna. Delta Three to be precise.’ He picked up
his hat and put it on again.
      ‘Doctor, sometimes I wonder if you’re quite right
in the head,’ said Romana exasperatedly.
      ‘Well, don’t worry about me. Just point the Tracer
and see where we head for next.’
      Romana produced the Tracer from inside her
tunic and held it up. Instead of its usual clear electronic
note, it produced a blurred, fuzzy sound. ‘That’s odd.
It’s not giving a clear reading. It seems to cover a
spread of about forty-two and a half degrees.’
      ‘I don’t like the sound of that,’ said the Doctor.
‘Either we’re right on top of the thing—which we’re
not—or the Tracer’s developed a fault.’
      Romana looked around. ‘Maybe the damp in the
atmosphere’s affecting it. I’ll just go over to the higher
ground over there and try again.’ She pointed to a
nearby hillock, considerably larger than the one where
they were standing. ‘There seems to be a path—of
sorts.’
      ‘Yes, why don’t you try that? I’ll wait here.’
      Romana disappeared into the reed-beds and the
Doctor stood waiting, hands in pockets, whistling idly.
So tall were the reeds that they rose over Romana’s
head. For a while the Doctor could follow her track by
the rustling of the reeds, then he lost sight of her.
      He studied the reeds close to him thoughtfully,
and fished an old clasp-knife from his pocket. Opening
the blade, he selected a reed with care and cut it off at
the base. Happily he began carving himself a flute...

Romana trudged along the muddy path which was so
narrow that the rustling reeds seemed to crowd in on
her. She had a moment of panic, wondering if she’d get
lost, then reflected that the Doctor was near enough to
hear her if she yelled. The path began to rise...
       Romana heard a faint rustling sound. She paused,
listening. A green hand clamped over her mouth, a
green arm wound round her neck, and she was dragged
swiftly and silently into the reed-beds.
                      2
                The Gun-Runner

The Refinery hovercraft sped along one of the many
rivers that criss-crossed the Swamplands. Hovercraft
were the only practicable forms of transport on Delta
Three, since the marshy, waterlogged ground made
road building difficult. So, on the rare occasions when
they had to leave the Refinery, Thawn and his fellow
technicians used the hovercraft, speeding over water
and swamp with a roar of jet-engines.
      (Swampies used boats when they travelled the
swamplands, slender, canoe-like affairs that glided
silently through the innumerable tiny channels.)
      Thawn and Fenner were covering the main water-
ways in a methodical search pattern, looking for the
renegade gun-runner, Rohm Dutt. If he was bringing a
cargo of guns to the Swampies, he would have to travel
with a fairly large party, and there were only so many
routes to the Settlement. He shouldn’t be too hard to
find.
      Fenner raised his voice above the roar of the
hover-craft. ‘What does he look like, this Rohm Dutt?’
      Thawn sat slumped in the driving seat, his big
hands resting confidently on the guiding-wheel. ‘Rohm
Dutt? He likes to think he’s a bit of a hard-case. Dresses
the part too. You know, cast-off Space Corps uniform,
bandoliers, wide-brimmed tropical hat. You can’t miss
him.’
      Fenner patted the butt of the laser-rifle cradled in
his lap. ‘I don’t intend to!’
      The hovercraft sped on.
      As it disappeared in a cloud of spray, the reeds
parted and two slender craft appeared. They were
paddled by green-skinned Swampie warriors in leather
loin-cloths, and they were piled high with sealed plastic
crates.
      In the prow of the second craft was a burly,
sweating figure in a wrinkled tropical uniform with no
insignia, and a broad-brimmed tropical hat. In the back
was Romana. She was gagged and her arms were
bound. The slender craft glided swiftly and silently
across the main channel, and disappeared into one of
the innumerable side-channels. The Swampies had their
own ways of travelling, using tiny creeks that cut
through the swamplands.

The Doctor played an experimental trill on his reed
flute. He was vaguely worried. Romana should have
been visible on the top of the little knoll by now. She was
nowhere to be seen. He got up and headed towards the
knoll.
      Suddenly a hovercraft came roaring down the
main channel. The Doctor waved sociably—and a laser-
bolt whizzed past his head. He dived for cover, landing
flat on his face in the reeds.

In the hovercraft, Fenner cursed, as the tall figure in
the broad-brimmed hat disappeared from view. ‘I think
I hit him! Pull up, I’ll go and check.’
      Thawn drove the hovercraft up the bank. Fenner
leaped out and went crashing into the reed-beds.

Nearby, Rohm Dutt signalled his paddlers to halt. ‘That
was a laser-rifle! What’s going on?’
     Beside him in the boat crouched Varlik, a
muscular, young war-chief. ‘We are near the Refinery.
Perhaps one of the dryfoots is out hunting.’ ‘Dryfoot’
was the Swampie term for anyone not one of
themselves. It held strong overtones of contempt.
     Rohm Dutt shook his head. ‘That lot? They’re
technicians.’ He pronounced the word with the same
contempt Varlik gave to ‘dryfoot’. ‘Technicians don’t
hurt. They’d have to leave their computers behind.
They’re after me! Come on, let’s get a move on now.’
     The paddlers bent to their work, and the two craft
sped on.

The Doctor was lying face-down in a clump of reeds,
wondering if it was safe to move. He heard the sound of
someone crashing towards him, turned his head and
opened one cautious eye. An angry-looking man was
standing over him with a laser-rifle. ‘So much for Rohm
Dutt. I never did like gun-runners.’ The man raised the
laser-rifle evidently determined to finish his victim off.
      The Doctor tensed himself to roll aside. If the first
shot missed, he could jump the man and...
      A second voice yelled, ‘Hold it Fenner! That’s not
Rohm Dutt.’ A second man came running up. The first
man turned on him angrily. ‘What do you mean? Look
at him, hat and everything. You described him
yourself.’
      ‘I tell you it isn’t Rohm Dutt. I’ve seen him on
Delta Magna plenty of times. You’ve shot the wrong
man!’
      The Doctor got to his feet. ‘To be precise, you’ve
shot the wrong man’s hat.’ He took off his hat, studied
the laser-burn on the brim and looked reprovingly at
the man with the rifle. ‘Really, Fenner, fancy taking me
for Rohm Dutt!’
       The laser-rifle was still covering him. ‘All right,
then who are you?’
       ‘Oh, just call me the Doctor.’
       ‘What are you doing here?’ demanded the second
man.
       ‘A sort of survey,’ said the Doctor vaguely. ‘At the
moment I’m looking for my friend. By the way, who are
you?’
       ‘My name’s Thawn, Refinery Controller. This is
my assistant, Fenner.’
       Suddenly the Doctor turned and marched off
down the path, Thawn and Fenner trailing baffled
behind him.
       The Doctor reached the lower slopes of the knoll
and studied the area around him with concern. ‘It looks
as if something must have happened to her. Look at the
way these reeds are crushed. There was some kind of
struggle...’ He noticed something glinting in the mud
and picked it up. It was the Tracer. ‘Something’s
happened to her or she’d never have dropped this.’ He
slipped the Tracer in his pocket.
       ‘The Swampies must have got her,’ said Thawn.
       The Doctor looked up. ‘Swampies? I take it those
are the native inhabitants?’
       Thawn nodded, and Fenner said uneasily. ‘They
don’t usually come this close to the Refinery. Either
they’re getting bolder—or they had good reason.’
       Thawn looked around the endlessly rustling reed-
beds. ‘There could be dozens of them in there. If they
jump us here we won’t stand a chance.’
       ‘How do I get in touch with these Swampies?’
asked the Doctor impatiently.
       ‘Forget it. You’re coming back to the Refinery with
us.’
      ‘Oh no I’m not, I’m looking for my friend. Sorry.’
      Fenner raised his rifle. ‘I’m afraid I must insist.
You’ve still got a lot of questions to answer.’
      ‘It would be uncivil to refuse such a gracious
invitation,’ said the Doctor politely. ‘Any chance of
strawberry jam for tea?’

After what felt like a longish journey Romana was lifted
from the boat, carried a short distance and lashed to
something heavy. The blindfold was taken from her
eyes.
      Blinking, she looked around her. She was inside a
kind of stockade, a rough wooden fence enclosing an
area of muddy ground. There were a number of reed
huts inside the stockade and she was tied to a massive
log just in front of the largest.
      Surrounding her was a semi-circle of fierce-
looking green-skinned warriors. A burly hard-faced
man in sweat-stained clothes and broad-brimmed
tropical hat pushed his way through the warriors,
waving them away. He lowered himself wearily on to
the log. ‘You know, there’s a thing called the drill-fly in
these swamps. Lays its eggs in your feet, and a week
later you get holes in your head.’
      Romana glared at him. ‘Just how long am I going
to be kept tied up here?’
      ‘Well now, that depends.’
      ‘On what?’
      ‘On whether you co-operate or not. If you do, I’ll
try to persuade them to let you go. If you don’t, you’ll
stay there till you rot—and believe me, in this climate, it
doesn’t take long. Of course, the insects may get you
first.’
        ‘And that doesn’t bother you?’
        ‘Me?’ The burly man laughed. ‘I’m indifferent. I’m
Rohm Dutt, young woman, maybe you’ve heard of me?
I’m a gun-runner—and you’re a Government spy. The
Swampies can do what they like with you.’
        Romana looked severely at him. ‘Emotional
callousness is usually indicative of psychological trauma.’
        ‘Yeah? To think I never knew that!’ There was a
distant roll of thunder. Rohm Dutt cocked his head.
‘Never known such a place for rainstorms—that’s why
everything’s so wet! Well, are you going to co-operate?’
        ‘How?’
        ‘By answering my questions. For a start, are you
from the Refinery?’
        ‘What Refinery?’
        Rohm Dutt nodded. ‘Good for you. I thought you
were going to lie. They don’t have any women working
there.’
        ‘Look, I don’t know what you’re talking about—
I’ve never even heard of any Refinery.’
        ‘Don’t get excited, young woman. Plenty of time to
dig out the truth.’
        ‘I’m already telling you the truth. You obviously
think I’m someone I’m not.’
        Rohm Dutt ignored her protests. ‘They send you
here alone, or with a team?’
        ‘Only the Doctor. And nobody sent me.’
        Rohm Dutt grunted. ‘Where’s this Doctor now?’
        ‘Looking for me, I expect.’
        ‘What were you doing in the swamps?’
        ‘Catching butterflies.’
     ‘Oh, I like a joke!’ said Rohm Dutt with weary
patience.
     ‘Good. I’ll try and think of one.’
     Rohm Dutt leaned forward menacingly. ‘What
were you doing in the swamp?’
     ‘Look, you’d be none the wiser if I told you.’
     ‘What were you doing in the swamp?’
     The questions went on and on.

The hovercraft was moored to the Refinery platform
and the Doctor was marched up a metal ladder, and
into a machinery-filled room. It was dominated by an
enormous pipe which ran clear across the room, and
disappeared into the wall. A technician was checking a
set of gauges; he looked up as they came in. ‘You got
him then?’
      Thawn shook his head. ‘This isn’t Rohm Dutt,
Harg.’
      ‘Who is he?’
      Fenner said, ‘We don’t know who he is. We found
him in the prohibited zone.’
      The Doctor looked at his charred hat brim. ‘You
really ought to put up a notice. “Trespassers will be
shot.” Something simple like that. Who’s Rohm Dutt?’
      ‘He’s a gun-runner. You’re sure you don’t know
him?’
      ‘Positive. I’m a stranger here.’
      Thawn resumed the questioning. ‘What were you
doing in the swamps?’
      ‘I’ve already told you—I was looking for my
friend.’
      Thawn looked threateningly at him. ‘Looking for
your friend in a forbidden zone close to a classified
project could get you into a lot of trouble.’
       ‘What classified project?’
       ‘You’re standing in the middle of it!’
       The Doctor looked around him. ‘This? A simple
methane-based catalysing protein refinery. Why should
it be secret?’
       Thawn drew in his breath. ‘You admit it, then?
You know what this place is for?’
       ‘Well, it’s obvious, isn’t it? I’ve seen hundreds of
them.’
       ‘He’s crazy,’ said Harg flatly.
       ‘This refinery is a pilot project,’ said Fenner. ‘The
first one ever built.’
       The Doctor sighed. ‘That’s the trouble with you
colonists from Earth, you’re always so insular. Now if
you’d been to Binaca-Ananda, you’d have seen one in
every town.’
       ‘Are you claiming you’re from outside this star
system?’ demanded Thawn incredulously.
       ‘Yes.’
       ‘Then how did you get here?’
       ‘Well, as a matter of fact, I have my own transport.’
       Harg scratched his head. ‘I told you—he’s crazy!’
       ‘Will you stop saying that?’ said the Doctor. He
turned indignantly to Thawn. ‘You heard him. He
keeps saying I’m crazy. What gives him such insight into
my mental processes, eh? Tell me that!’
       From the look on Thawn’s face, he agreed with
Harg. ‘You claim to be an expert on this type of
installation, do you, Doctor?’
       ‘I’m an expert on most things actually,’ said the
Doctor modestly. ‘Yes, I think I might claim a working
knowledge.’
       Thawn’s hand pointed upwards. ‘All right, expert—
what’s that?’
      ‘It’s an air-vent. Very useful too, sometimes.’
      ‘No, not the vent—the piece of machinery just
below it.’
      The Doctor squinted upwards and frowned. ‘Oh
that?’
      ‘Yes that!’ Thawn shot a triumphant look at Harg,
sure that he’d caught the Doctor out.
      ‘That,’ said the Doctor deliberately, ‘is a simple
funicular gas separator.’
      Thawn pointed again, a little to one side. ‘And
that?’
      ‘Well,’ said the Doctor judiciously. ‘That looks to
me like a rather primitive enzyme recycler with an
injection circuit feeding the bacterium bioplast.’
      There was a stunned silence.
      ‘From there,’ continued the Doctor airily, ‘I
imagine the raw protein is centrifuged, before being
freeze-dried and compressed for packaging.’
      Absorbed in his own lecture, the Doctor started
wandering about the pump room, hands in his pockets.
‘Incidentally, I think you might render the process
considerably more efficient if you inserted a plasmin
catalyst after the bioplast circuit...’
      There was a stunned silence.
      ‘A plasmin catalyst?’ said Fenner unbelievingly.
      ‘Yes, why not?’
      Harg looked at Thawn. ‘You remember, sir, that
seminar, just before we left Delta Magna? Research have
been working on it for years. It’ll be the next
development of the process. It took a team of top
scientists five years to come up with the idea of a
plasmin catalyst—and he throws it out as a casual
afterthought! That’s brilliant! ‘
      ‘All right, so he’s brilliant! ‘ snarled Thawn.
      ‘Thank you,’ said the Doctor. ‘Am I free to go
now?’
      ‘No!’
      ‘Why not?’
      ‘You still haven’t told us what you were doing in
the swamps.’
      ‘Yes, I did. Just a sort of survey.’ The Doctor
headed for the door. ‘Now if you’ll excuse me, I really
must go and find Romana.’
      Fenner moved to bar his way. ‘I wouldn’t. If the
Swampies have taken her to their Settlement, you’ll
never reach her. Those swamps are bottomless—and
only the Swampies know the paths.’
      ‘That’s right,’ said Thawn. ‘And if you do get
through the swamps, you’ll probably end up with a
Swampie spear in your back. The Swampies have killed
two of my men already.’
      ‘Why?’
      Before Thawn could answer the Doctor’s question,
a voice boomed from a loudspeaker. ‘Attention,
attention. Orbit shot in ten minutes.’
      ‘Orbit shot?’ asked the Doctor curiously. ‘What’s
that?’
      ‘Why don’t you come and see?’ invited Thawn
sardonically. ‘We’ll watch it from the control centre.’

Still fastened to her log, Romana watched Rohm Dutt
prise the lid off a plastic crate and fish out a squat wide-
barrelled rifle. He held it up to the admiring circle of
warriors around him. ‘There you are. Sixty-calibre gas-
operated Stelsons. It’s a simple weapon, you’ll soon get
the hang of them.’
       A warrior in a cloak and an elaborate head-dress
stepped forward. He was middle-aged, though still lean
and tough, and he had the look of unquestioned
authority. His name was Ranquin, and he was supreme
chief of the tribe. Ranquin took the gun and examined
it. He looked at the other guns in the crate. ‘The guns
are old.’
      ‘Oh come on now, Chief, they need cleaning, true
enough, they’ve been in storage a long time. But these
guns have never been out of their crates. They’re in
perfect working order.’
      Varlik, the war-chief came forward. ‘Where are the
magazines?’
      Rohm Dutt pointed to a nearby crate. ‘In there.
Two for each gun.’
      ‘And the spare ammunition?’
      ‘You’ve got forty guns. That makes eighty
magazines with fifty rounds in each. Is there an army at
the Refinery?’
      Ranquin laughed grimly. ‘You are my brother,
Rohm Dutt. With the weapons you bring we shall drive
the dryfoots from our sacred waters.’
      ‘That is why the Sons of Earth sent them to you,
Chief.’ Rohm Dutt fished out a sheet of paper from
inside his tunic. ‘Now, if you’ll just be kind enough to
put your signature on this.’
      Skart, the Chief’s High Priest, said suspiciously,
‘What is this signature?’
      ‘Look, just make your mark, anything you like. It’s
just to say that I’ve made the delivery. I have to show
them the paper back on Delta Magna.’
      Ranquin looked ironically at him. ‘Can it be that
the Sons of Earth do not trust my brother?’
      ‘It’s just a matter of business, Chief, you know.
Look, just make your mark, anything you like. Put your
seal on it.’
      Ranquin fingered the carved head of his staff.
‘This bears the Sign of Kroll, it is sacred to our people.’
      ‘That will do very nicely,’ said Rohm Dutt
hurriedly. He held out the paper. Skart produced a pot
of thick black ink, and the Sign of Kroll, a squiggly
octopus-like design, was duly affixed to the bottom of
the paper.
      ‘Thank you,’ said Rohm Dutt, and stowed the
paper away. It was clear to Romana that he was in a
hurry to be off.
      Ranquin nodded towards her. ‘What of the dryfoot
woman my men captured. Was she spying on us?’
      ‘I think she must have been, Chief. But she’s stub-
born, she’ll admit nothing.’
      Skart moved closer to his Chief. ‘Let us offer her to
the Great One. Always in the past when our people
went to battle, they first made a blood sacrifice to Kroll.’
      Ranquin considered for a moment, then nodded
decisively. ‘So be it. We will use the dryfoot woman to
ensure that we triumph over her fellows. She shall be
sacrificed to Kroll!’
                        3
                   The Sacrifice

The Doctor’s interest in the workings of the Refinery
was so obviously genuine that Thawn and the other
technicians found themselves explaining the entire
operation. The Doctor listened with flattering attention.
      ‘The Refinery produces a hundred tons of
compressed protein every day,’ explained Thawn
proudly. ‘We package it in an unmanned cargo-rocket
and shoot it into orbit round Delta Magna, every twelve
hours. They collect the rockets and take them down to
the planetary surface.’
      ‘That’s what makes the operation viable,’ said
Fenner. ‘If we had to use space freighters the costs
would be too high.’
      ‘The planet is fully automated of course,’ Thawn
went on. ‘The computer controls the orbit shot, but I
always like to double-check. If there’s a misfire, we have
a manual override.’
      The Doctor watched a green-skinned figure bring
forward a tray full of drinks. ‘You do all this with just
the five of you here?’
      Thawn gave him a puzzled look. ‘Four, Doctor.’
      The Doctor looked round the room, counting. ‘I
make it five. One, two, three, four, five.’
      Thawn laughed. ‘Oh, I see. You were counting
Mensch. He’s only a Swampie.’
      ‘So he doesn’t count?’ said the Doctor
thoughtfully. ‘Perhaps that’s why his friends keep
attacking you!’
      ‘They attack us because they’re ignorant savages.’
      ‘They were the first on Delta Magna,’ said Dugeen
mildly. ‘We took their planet away from them and sent
them here. Now they’re afraid we’ll take what they’ve
got left.’
      Fenner looked curiously at him. ‘Sometimes,
Dugeen, I wonder if the Sons of Earth haven’t been
getting at you.’
      Harg looked up from the controls. ‘Two minutes
to orbit shot.’
      ‘Listen,’ said Dugeen heatedly. ‘When this plant is
declared a success they’ll put ten full-scale refineries on
here. There’ll be no room for the natives then—and
they know it!’
      The Doctor wandered over to a wall-map which
showed the immense lake, almost an inland sea, which
took up so much of the surface of Delta Three. ‘Even a
lake this size couldn’t support ten full-scale refineries,
surely?’
      ‘Oh yes it can,’ said Fenner positively.
      ‘But the protein density of the lake would have to
be colossal.’
      ‘It is, Doctor.’ Thawn said proudly. ‘I discovered it
myself. I calculate that this lake can supply one fifth of
the protein requirements for the whole of Delta Magna.’
      ‘That’s very impressive. Tell me, where were these
two men of yours when they were killed?’
      ‘Out on the lake, taking samples.’
      ‘What happened to them? Exactly how were they
killed?’
      ‘They just vanished. We never found their
bodies—the Swampies made sure of that.’
      ‘Then surely it could have been an accident?
Perhaps they just drowned?’
      Thawn shook his head. ‘Two experienced men?
No, Doctor, they were killed.’
      ‘Thirty seconds to shot,’ announced Harg.
      ‘It could have been an accident,’ insisted the
Doctor. ‘Or something else, some other danger you
don’t even know about. It hardly seems fair to blame
the Swampies—particularly if you’re just about to
dispose of them for the second time.’
      ‘Don’t you worry about the Swampies,’ said Thawn
impatiently. ‘The Government will take care of them —
provided they see reason.’
      The Doctor looked at the silent, green skinned
figure in the corner. ‘What will it do—teach them to
carry trays, like our friend here?’
      ‘Why not? Tell me, Doctor, would you let a small
band of semi-savages stand in the way of progress?’
      ‘Progress is a very flexible word—and it can mean
just about anything you want it to, depending on who’s
speaking.’
      ‘Countdown!’ announced Harg. ‘Ten, nine,
eight...’
      ‘All external doors sealed,’ ordered Thawn.
      Dugeen said, ‘Seven, six, five, four...’
      The Doctor slipped away.
      ‘Three, two, one, zero! ‘
      A throbbing roar shook the Refinery as the cargo-
rocket blasted off.
      Another shipment of protein was on its way to feed
the hungry millions on Delta Magna.

Soon after dark, Romana was taken to the Temple of
Kroll, just outside the stockade. It was little more than a
glorified log hut, its wooden gate-pillars carved with the
Sign of Kroll. A huge metal gong hung beside the gates.
      Romana was shackled to another log, just inside
the temple doors. Beside her was a flat stone slab. Skart
moved forward with a blazing torch, and great jets of
swamp gas caught fire and flared high around her. She
lay chained and helpless in the middle of a circle of
flame, watched by an awe-struck group of warriors.
      Romana lifted her head, and saw Rohm Dutt
standing with the others, his face impassive. ‘I suppose
you’re enjoying this,’ she called.
      ‘Makes no odds to me. I’ll be on my way back to
Delta Magna soon. Any last messages for your friends in
Government Security?’
      Before Romana could answer, Ranquin came
forward. He was wearing his ceremonial cloak. ‘All is
ready in the Temple of Kroll.’
      Skart bowed low. ‘The offering is prepared.’
      A distant explosion shook the ground beneath
their feet, and rumbled away over the marshes.
      Rohm Dutt looked up at the sky. A fiery streak was
disappearing from view. ‘Another orbit shot?’
      Varlik nodded. ‘Soon there will be no more such
blasphemies! ‘
      Ranquin raised his voice in a ritual chant. ‘Open
the pit. Let Kroll be summoned from the depths!’
      A group of sweating warriors rolled away the slab,
and Romana twisted her head, staring down into
blackness.
      Ranquin took up a metal hammer and struck three
times upon the gong. The brazen clangour of the gong-
notes echoed across the swamplands. From inside the
stockade came the steady beat of drums.
      Ranquin chanted, ‘O Kroll, hear thy people. We
summon thee, O Kroll! We offer this girl’s life in tribute
to thy greatness. Guide and protect us O Great One.
Give victory to thy people, in the struggle that lies
ahead.’
      He struck the gong again, and turned and led the
warriors away, back inside the stockade.
      Rohm Dutt lingered a moment, then followed the
others. Romana was left alone, surrounded by the
fiercely-blazing gas jets, staring down into the darkness
of the pit.

The Doctor was wandering around the pump rooms,
studying the dials and pressure gauges when Thawn
appeared.
      ‘Ah, there you are, Doctor. We were wondering
what had become of you.’
      ‘Oh I just thought I’d poke around a bit. When
you’ve seen one orbit shot you’ve seen ’em all! What’s
that noise?’
      Thawn listened. A steady drum-beat was rolling
across the swamplands. ‘It’s coming from the direction
of the Settlement.’
      ‘Maybe they’re having a dance,’ said the Doctor
lightly, but his face was grave.
      Suddenly Mensch spoke from the doorway. ‘My
people summon Kroll. They are making a blood
sacrifice.’
      ‘Who’s Kroll?’
      ‘It’s the Swampie name for a kind of giant squid,’
said Thawn. ‘Centuries ago when we resettled the
Swampies here, we shipped along a couple of specimens
and turned them loose in the swamp, just to keep the
Swampies happy.’
      ‘A blood sacrifice,’ said the Doctor slowly. ‘I don’t
like the sound of that at all. I think I’d better go and
find my friend now.’
      ‘Don’t be stupid, Doctor. You’ll never cross those
swamps on your own.’
      ‘In most primitive cultures it’s common to sacrifice
an enemy—a stranger. I’ve got a shrewd idea who that
stranger might be. Romana can be a difficult guest!’
      ‘Wait till it gets light at least. We’ll take the
hovercraft, and go in force.’
      ‘Why are you so keen to help me all of a sudden?’
      ‘You heard what Mensch said. If the Swampies are
holding a blood sacrifice, they’re preparing for war.
And that means Rohm Dutt got through with those
guns. We’ve got enough weapons here to knock out that
settlement in a couple of minutes. Now the Swampies
are armed, we’ve got to strike first, in self-defence.’
      The Doctor shook his head, ‘I’m planning a
rescue, not a massacre. I’ll go alone, as soon as it gets
light. Now I must get some sleep.’ The Doctor slipped
away.
      Thawn turned and hurried back to control.
Mensch, ignored as usual, was left alone in the pump
room. As soon as Thawn was out of sight, Mensch
hurried to a bank of machinery, groped beneath it, and
produced a primitive lantern. Lighting it with flint and
steel from a belt pouch, he hurried to the window and
slid back the shutter. He began signalling with the
lantern, opening and closing it to produce an irregular
flashing.
      The Doctor watched thoughtfully from just outside
the door, pleased to have his theory confirmed.
      Since by all accounts the Swampies were a fierce,
war-like people, why should one of them come to act as
a servant at the hated Refinery? Surely only in order to
spy upon the enemy.
        Now Mensch was reporting Thawn’s planned
attack to his people. But how? Surely the lantern-flash
would not carry all the way to the Settlement?
        Suddenly the Doctor saw a light over Mensch’s
shoulder, flashing a reply from somewhere in the
swamp. One of Mensch’s fellow tribesmen, no doubt
posted in the swamplands nearby, acting as a kind of
courier. Soon he would be taking Mensch’s message
back to his people.
        It occurred to the Doctor that the courier might
serve as a guide.
        He hurried out into the darkness of the Refinery
platform, and stood looking around him in the dank
warm tropical night. There, not far away, the light was
still flashing. The Doctor climbed down a steel ladder. A
swampie canoe was moored at the bottom, and the
Doctor climbed into it.

The tribesman stood on the mound overlooking the
Refinery, absorbing the message that Mensch was
sending. When the message was complete, he flashed
acknowledgement and moved away to the stream. He
dimbed into a hidden canoe and paddled away in the
direction of the Settlement.
     Seconds later, the Doctor’s boat moved silently
down the stream, following the messenger.

Straining her eyes, Romana peered into the mouth of
the pit. Was something moving down there in the
blackness? It was hard to see dearly in the fitful glare of
the gas-jets. ‘It’s all nonsense,’ she muttered to herself
uneasily. ‘Primitive spirit worship!’ An eerie whistling
sound came from the pit...
The sound could be heard, though faintly, by the little
knot of warriors waiting inside the entrance to the
stockade.
      Ranquin looked around the circle of rapt, intense
faces. ‘Kroll rises,’ he whispered. ‘Kroll rises from the
depths!’
      The whistling, gurgling sound was louder now.
Romana strained her eyes.
      Something was coming out of the pit.
      It was a wriggling, heaving, shapeless glob, faintly
luminous in the darkness.
      As she watched, it reached out a long tentacle,
ending in a huge snapping claw.
      Claw snapping, the tentacle shot out of the pit
towards her...
      Romana screamed.
                       4
                   The Tunnel

Romana screamed and twisted in her chains, but it was
no use. It was almost as if her screams guided the long
tentacle towards her. It came closer, closer... then
swooped forward. The claw clamped round her neck,
choking her.
      She struggled wildly, but the claw tightened its
grip remorselessly, crushing the breath from her throat.
      Suddenly the Doctor bounded out of the darkness,
snatched up the heavy metal gong-striker and smashed
it down on the shapeless body of the monster. There
was a thud and a grunt, and the claw went slack, drop-
ping away from Romana’s throat.
      The Doctor grabbed the tentacle and heaved,
pulling the monster bodily out of the pit. But what
emerged wasn’t a monster at all. It was the Swampie
High Priest, wrapped in a bundle of luminous skins.
The tentacle was a long skin-covered pole. Presumably
there were some kind of tongs to work the snapper
claw. It all looked incredibly crude, and primitive:
Romana was disgusted with herself for being so terrified
by such a simple device.
      The Doctor smiled, guessing what she was feeling.
      ‘Never mind, Romana. He probably looked a lot
more convincing from the front.’
      ‘Only too convincing! How did you know it was a
fake?’
      The Doctor pointed to a line of wet footprints
leading from the edge of the pit.
      ‘There’s no need to be so smug about it, Doctor!’
       ‘I’m not being smug.’
       ‘Oh yes you are! I can tell that expression, even
from behind.’
       The Doctor went over to the altar, and studied it
carefully. ‘You may have had a lucky escape after all
Romana. There was a Kroll once, a real one.’
       ‘How do you know?’
       ‘There are real sucker marks here, huge ones.
They’re actually gouged deep into the stone. Pretty
ancient though, judging by the way the serrations have
eroded.’
       Romana shuddered, visualising a creature so huge
and powerful that it could leave its mark on stone,
‘Presumably that must have been Kroll—the real Kroll.’
       ‘They told you about their local water deity?’
       ‘Oh yes! They seemed to think I should be
honoured to be sacrificed to him.’
       ‘Sacrificed to his memory, more like it,’ said the
Doctor thoughtfully. ‘The real Kroll was brought from
Delta Magna hundreds of years ago. Surely he must be
dead by now.’
       Romana said, ‘That explains the masquerade. The
priests must have started to fake the monster just to
inspire the faithful. It’s all political, really.’
       ‘Don’t talk to me about politics,’ muttered the
Doctor. He bent to examine the crude padlock on the
chains holding Romana to the log.
       Romana looked over his shoulder and her eyes
widened. The bundle of skins in the corner was moving.
‘Look out, Doctor!’
       The Doctor whirled round, ducked—and the
heavy ceremonial knife Battered harmlessly off the
altar.
      The Doctor jumped forward, but the priest was
already disappearing into the darkness.
      The Doctor knelt beside Romana, fished out a
pick-lock from his pocket, and set to work on the
padlock. ‘I think we’d better get you away from here.’
      ‘It would be nice,’ agreed Romana faintly.
      ‘I wonder where they found this padlock. Brought
it from Delta Magna probably. It’s a real antique.’
      ‘Fascinating!’ Romana hesitated. ‘Doctor, there’s
something I have to tell you.’
      ‘What?’
      ‘When they captured me—I dropped the Tracer.’
      The Doctor patted his pocket. ‘That’s all right. I
picked it up again.’
      ‘Then as soon as you can get me out of here, we
can go and hunt for the fifth segment.’
      ‘Not till it gets light, we can’t. It would be
extremely foolhardy to go wandering around that
swamp in the dark.’
      There was a dick and the padlock sprang open.
      Romana struggled free of the heavy chains. ‘We
can’t stay here, Doctor. Our Monster friend will be back
any minute with his warriors.’
      ‘I doubt it,’ said the Doctor cheerfully. ‘He’s got to
keep this business about the fake pretty quiet,
remember. Very embarrassing if the congregation
found out the truth. Besides, the warriors will all be
busy digging trenches. They expect to be attacked at
any moment. I followed a Swampie messenger who was
carrying information.’
      ‘How did you manage that?’
      ‘Oh, it wasn’t too difficult,’ said the Doctor airily.
‘Thawn, the Refinery boss, was keen on organising a
massacre, so I just slipped away.’
      Romana stretched her arms and legs, stiff and
aching after her long captivity. ‘What is this Refinery?
They seemed to think I might have come from it
originally.’
      ‘It’s a primitive methane catalysing protein
refinery. A pilot plant for bigger things apparently. You
see the people of Delta Magna—which was originally an
Earth colony by the way—shipped our green friends up
here when they colonised the planet.’
      ‘Presumably because they thought this moon was
no use to anybody?’
      ‘That’s right. But now they’re discovered there
may be something they want here after all.’
      ‘What something?’
      ‘Protein,’ said the Doctor. ‘Protein, refined from
this enormous lake. I wouldn’t have thought there was
enough here to make it worthwhile, but they’re already
producing a hundred tons of compressed protein twice
a day, and they estimate they can get ten times more
than that.’
      Romana did a few rapid mental calculations. ‘But
that’s ridiculous. How could the lake produce that much
protein? Where’s it coming from?’
      ‘That’s something I haven’t discovered yet. But it’s
obviously produced by something, somehow. And in big
enough quantities to make it worth fighting over.’
      Romana thought of the savage green-skinned
warriors who had been her captors. ‘This lot are
spoiling for a war as well. They’ve got arms now.
There’s a gun-runner here called Rohm Dutt. He
thought I was a spy trying to get evidence against him.’
She looked at the altar. ‘The whole idea of my being
sacrificed was to propitiate Kroll, get him on their side
in the coming battle.’
      As always, the Doctor was unable to resist a puzzle.
‘Rohm Dutt eh? So Thawn was right. But who’s paying
Rohm Dutt for his trouble? These people obviously
don’t use money. And how come Thawn seemed to
know so much about him?’
      Romana sighed. ‘Does it matter, Doctor? It’ll be
light soon. Let’s just find the segment and leave them to
their war.’
      The Doctor was looking thoughtfully into the pit.
‘I wonder what they keep down there—besides fake
monsters?’

Rohm Dutt awoke from a nightmare in which he was
being chased by hordes of green warriors, straight into
the tentacles of a giant squid. He awoke to find a green
face hovering over him. At first he thought it was part of
his nightmare, and then realised that he was on his bed
in the guest hut, inside the Swampie stockade. Varlik
was shaking him awake. Ranquin the Swampie chief
looked on impassively.
      Rohm Dutt shook his aching head, and struggled
up on to one elbow. ‘What is it?’
      ‘We have had a message from Mensch, the one
who watches our enemies at the Refinery. The dryfoots
plan to attack us at dawn.’
      Rohm Dutt was baffled. ‘What? Them attack you?
Here, at the Settlement? That wasn’t what was—’ He
broke off, shaking his head in confusion.
      ‘They are coming in their air-boats at dawn,’ said
Ranquin.
      Rohm Dutt struggled to his feet. ‘You must lead
your people away from here at once, Chief. Take them
to hide in the swamps, they’ll never find you there.’
      To Rohm Dutt’s horror, Ranquin shook his head.
‘We shall not run from the dryfoots, ever again. We
have weapons now.’
      ‘But you don’t know how to use them!’
      Varlik slapped the magazine of the rifle tucked
under his arm. ‘You said yourself, the rifle is not a
difficult weapon.’
      ‘You still have to know one end from the other!’
      ‘You are like all dryfoots! You think because we
lead a simple life that we must be fools. My men are
warriors!’
      ‘I know, I know,’ said Rohm Dutt placatingly. ‘All
I’m saying is, you’re not ready to fight yet. If you split
into small groups and spread out across the swamps
they’ll never be able to hit you.’
      Ranquin shook his head. ‘Our battle plan is
already made. We shall ambush them when they are in
the open, upon the lake. They are only a handful. We
shall take them by surprise.’
      Rohm Dutt changed his tack. ‘Chief, even if you
succeed this time, that won’t be the end of it. Others will
come to avenge them.’
      Ranquin’s voice was shaking with anger. ‘They are
aggressors, invaders of our waters. They have no right
here. Are there not many on Delta Magna itself who
support our cause? Why else would the Sons of Earth
send us, these weapons?’
      Rohm Dutt’s massive shoulders slumped
dejectedly. ‘Have it your way. I still say it’s too early to
fight them.’
      Ranquin looked shrewdly at him. ‘I think you
would rather we waited until you were safely back on
Delta Magna, Rohm Dutt.’
      ‘Sure, why not? I came here to supply you with
arms, net to watch you use them.’
      Varlik’s green hand fell like a clamp on Rohm
Dutt’s meaty shoulder. ‘But you will fight with us
tomorrow, brother. We shall need every gun!’
      Rohm Dutt was too terrified to reply.
      Ranquin smiled contemptuously, and left the hut.
Varlik followed him.
      Rohm Dutt sank back on his bed, glaring angrily
after them. He knew they thought he was a coward—
but they were wrong. Rohm Dutt had been in a score of
pitched battles up and down the entire star system.
Fights with rival gun-runners and smugglers, battles
with Government Police craft. In the normal way he
didn’t mind a fight, enjoyed it even. But this was
different.
      Rohm Dutt had good reason to fear tomorrow’s
battle.
      Like the Swampies, he had very little chance of
coming out of it alive.
      He lay back on his straw bed, sweating with fear,
dreading the dawn.
                     5
            The Thing in the Lake

There might be a battle planned for tomorrow, but the
routine work of the Refinery had to go on as usual.
      In the control room, Dugeen was studying the
screen of a radar scanner. It covered the whole of the
immense lagoon, charting its shifting currents and the
movements of the muddy bed. He looked up at Thawn.
‘You see? Look, I’ve been recording these scans every
five minutes.’
      Something very odd indeed was showing up on
the scanner—a massive disturbance in the centre of the
lagoon.
      Thawn frowned at the screen. ‘What’s the latest
picture?’
      ‘Coming up.’ Dugeen clicked a control and the
picture changed slightly.
      ‘That’s weird... it’s as if something’s lifted up the
centre of the lagoon bed, and then settled back again.
      ‘Could it be a gas build-up?’
      ‘I doubt it sir, not over that area.’
      ‘We’d better sink probes in the centre there, take a
few samples. We’ve got to find out what’s going on.’
      Fenner came into the room. ‘That Doctor chap
seems to have disappeared.’
      ‘Have you looked in the sleeping quarters? He said
he was going to get some sleep.’
      ‘Of course I’ve looked in the sleeping quarters,’
snapped Fenner irritably. ‘I’ve looked everywhere,
searched the Refinery. He’s gone—and Mensch says one
of the boats is missing.’
      Dugeen looked up from his screen. ‘I know this is
a bit wild, sir, but do you think he could be connected
with this business here?’ He indicated the mysterious
trace on the screen. ‘I mean it only showed up after he
arrived.’
      Fenner went over to the screen. ‘What’s going on?’
      ‘This!’ said Thawn pointing to the mysterious
trace-pattern. ‘Have you ever seen anything like it
before?’
      Fenner studied the screen. ‘No, I haven’t. But
surely whatever it is, it’s enormous. I doubt if our
mystery friend could be responsible for anything on that
scale, not on his own.’
      Thawn stroked his moustache. ‘Then maybe he’s
not on his own. He was talking about a missing friend
when we picked him up, remember?’
      ‘Well, maybe he’s got more than one friend on
Delta Three,’ said Dugeen. ‘We don’t even know how
he got here.’
      ‘Or how long he’s been here,’ said Thawn slowly.
‘We’re assuming he couldn’t have done much harm
because he was here with us. But suppose he came to
Delta Three some time ago? Suppose he’s got friends
hiding out there in the swamps?’
      Fenner gave him a puzzled look. ‘It’s possible, I
suppose... But what are they up to?’
      ‘That’s obvious, surely. They’re trying to sabotage
the work of this Refinery.’ He jerked a thumb at the
radar screen. ‘All that could be part of it. They’re
carrying out some kind of activity on the lake bed,
trying to contaminate the protein source. This Doctor is
a scientist of some kind. Look how much he seemed to
know about this place.’ Thawn paused, considering. ‘Of
course, that could all have been an act. Maybe he was
just very well briefed.’
      Fenner shook his head. ‘No, no, he’s a scientist all
right. You remember that business about the plasmin
catalyst? He couldn’t have faked all that.’
      ‘Well, whoever he is, I reckon he’s come here to
help the Swampies. You say there’s a boat missing?’
Fenner nodded, and Thawn went on, ‘Well, if he took a
boat rather than a hovercraft... it means he didn’t want
the noise of an engine. He wanted to contact them
secretly.’
      ‘Why would he risk trying to cross the swamp,
alone and at night?’
      ‘Because he’s a Swampie lover. It isn’t a risk at all
for him. He’s in with them!’
      ‘You think he’s gone to warn them we’re coming?’
      Thawn pounded a fist into the palm of his hand.
‘Exactly! I had an instinct about him from the very
beginning. He was too glib by half. He’s one of them all
right, one of those fanatics from the Sons of Earth. I’m
going to take Mensch for a guide, and go after him in
one of the hovercraft.’
      Fenner looked thoughtfully at him. ‘I wouldn’t
bother. He’ll have to leave the boat eventually, and if he
wanders off the path—well, the Sons of Earth won’t be
much help to him then. He’ll probably be dead by
morning.’
      Thawn took a laser rifle from a rack on the wall.
‘Oh, he will, Fenner, he will. I intend to make quite
certain of it!’

The Doctor climbed out of the tunnel with a massive
leather-bound volume under his arm. ‘There’s a kind of
secret room, full of religious relics. I found this.’
      ‘What is it?’
      The Doctor opened the book. Its pages were filled
with drawings of tiny figures, lines of blurred writing
underneath. ‘I think it’s a kind of illustrated history of
the tribe. The Bayeux Tapestry—with footnotes!’
      Romana looked over his shoulder. ‘A sort of Holy
Writ?’
      The Doctor peered at the cramped writing. ‘I
think it’s atrociously writ, actually. But the pictures
aren’t bad. Look, this sequence shows them being
evicted from Delta Magna. They were given this moon
as a sort of reservation... There’s Kroll.’ The Doctor
pointed to another drawing. A tiny priest-like figure
stood before an altar, holding a shining object high in
front of him. An enormous octopoid shape loomed
behind the altar, towering over him.
      ‘What does the writing say?’
      ‘Let me see.’ The Doctor began to read. ‘“And
when Kroll awakened, he saw that the people were fat
and indolent. And then Kroll became angry and struck
them down, swallowing into himself the symbol of his
power and killing all who were in the Temple, even
unto Hajes the High Priest. Great was the lamentation
of the people. But Kroll returned to the water and slept,
and would not hear them.”’
      Romana shivered. ‘I prefer a book with a happy
ending!’
      ‘“Thus was the third manifestation of Kroll!”’ The
Doctor closed the book. ‘Well, you can say one thing for
Kroll, he’s obviously not one of those monsters who’s
always hanging about the place.’
      ‘Just pops up every few hundred years, is that it?’
      The Doctor nodded. ‘A dormancy period of that
length usually indicates a creature of enormous size...’
      ‘You think Kroll really exists?’
      The Doctor nodded gravely. ‘Yes I do. I think
Kroll is probably still around—and just about due for
his fourth manifestation!’
      Romana jumped up. ‘Then let’s not stay here and
wait for it!’ She looked outside the temple. ‘It’s nearly
light now, Doctor. Can’t we get away from here.’
      The Doctor yawned, and stretched. ‘Right as
always, Romana. Time we were on our way. I’ve got a
boat hidden in the marshes...’
      They crept cautiously out of the Temple.

The ambush was prepared.
      To reach the Settlement, the technicians from the
Refinery had to use the main water-ways—the sub-
channels were too small for their hovercraft.
      At a kind of bottleneck, a point where the channel
was narrowest and the reeds thickest, the Swampies lay
in ambush.
      Many of the warriors clutched one of the new
Stelson rifles. The rest had spears, and knives.
      Everything was ready.
      Rohm Dutt watched the preparations with gloomy
anticipation. The Swampie warrior beside him was
studying the mechanism of his rifle in child-like
fascination, thrusting the muzzle almost under Rohm
Dutt’s chin. The gun-runner struck the barrel aside.
‘That way you fool. Don’t point it at me!’
      In a clump of reeds overlooking the main channel,
Ranquin the Chief was having an agitated conference
with Skart, his High Priest.
      ‘Where did this stranger come from?’
      ‘I do not know. He struck me down from behind.’
      ‘So the sacrifice was not made,’ whispered
Ranquin. ‘You did well to keep silence until we were
alone, Skart. No one must know of this. They would
think it a bad omen.’
      A cunning gleam came into Skart’s eyes. ‘But the
dryfoot woman will be gone. We can say Kroll took her.’
      ‘Then there must be fresh blood on the altar stone
for the faithful to see.’
      ‘There will be,’ promised Skart. ‘I will see to it
when we return. Trust me.’
      He slipped away.

Thawn and Mensch roared down-stream in the
Refinery hovercraft. Suddenly Mensch pointed.
     The Doctor’s abandoned skiff was drawn up at the
bank, tied to a knotted tree-root.
     Thawn swung the hovercraft towards the bank.

In the reeds Varlik held up his hand to restrain his
warriors. ‘Wait—do not fire. There is only one air-boat.
There must be others.’

The hovercraft glided up the bank, and Mensch jumped
out to examine the boat.
      Thawn was at the wheel of the hovercraft, clearly
visible from the reed-beds.
      The Swampie warrior next to Rohm Dutt could
wait no longer. The glory of killing the enemy chief was
too great to resist. He took careful aim at the figure in
the hovercraft and pulled the trigger.
      The gun exploded blowing away most of the
warrior’s head.
       A second later, an immense, many-suckered
tentacle slid out of the lake, curled round Mensch, and
dragged him screaming into the water.
       Rohm Dutt jumped to his feet and raced down the
bank, towards the hovercraft. ‘Thawn, wait! It’s me,
Rohm Dutt!’
       Something unbelievable rose out of the water in
front of him.
       It was so huge, so horrible, so terrifying that the
eye and the mind could scarcely take it in. An immense
octopus-like shape towering mountain-like above the
flat swamplands. Rohm Dutt gave a yell of pure terror,
and turned and fled.
       Thawn threw the hovercraft into gear, spun it
round and roared away over the horizon.
       Ranquin however, walked towards the incredible
shape, his face lit up with ecstasy. ‘It is Kroll, Varlik. See
it is Kroll. O Kroll, Great One, spare thy true servants.’
       Varlik, less religiously minded and more practical,
threw himself at the Chief’s knees, bringing him down
into the shelter of the reeds.
       Kroll gave a terrifying, whistling roar and
disappeared below the lagoon.
       Ranquin struggled to his feet, his face ecstatic.
‘Kroll rose from the deep to protect his people. Let us
give thanks to Kroll.’
       The Swampie warriors fell to their knees. ‘Praise to
Kroll. Let us give praise to Kroll! ‘
       Only Varlik did not join in the chant. He had
picked up the rifle that had killed the warrior, and was
examining the exploded magazine. ‘First let us find
Rohm Dutt, our brother. I think we have a score to
settle with him.’
      The warriors rose and began their search. No one
could escape them for long in their native swamps.
      The capture of Rohm Dutt was only a matter of
time.
                        6
                    The Attack

Thawn lay slumped in a chair in the control room, and
swigged down a beaker of brandy.
       ‘Feeling better?’ asked Fenner. ‘What happened
then? Was Mensch killed?’
       ‘I think so, I didn’t stay to watch.’ He rubbed his
hands over his eyes. ‘The size of that thing. The sheer
size... It was unbelievable.’
       Harg shook his head wonderingly. ‘If it’s as big as
you say it is, how come we haven’t spotted it before?’
       ‘What about the Doctor?’ asked Fenner. ‘Did you
see him?’
       ‘No. But the Swampies knew we were coming.
They were waiting in ambush, he must have warned
them. They were armed too, one of them shot at me.
Rohm Dutt was with them, they’re all in it together.
Maybe they came in on the same ship. The Sons of
Earth have got to be the ones behind them. No one else
has the resources for an operation like this—or the
motive either.’
       Harg was beginning to feel frightened. ‘Shouldn’t
we send for reinforcements? A Government Security
Unit?’
       ‘No!’ said Thawn fiercely. ‘The Government are
too soft. We must handle this ourselves. We’ll do it my
way.’
       Fenner gave him a sceptical look. ‘And what is
your way?’
       ‘We get rid of the problem once and for all.’
       Fenner said slowly, ‘If you’re talking about mass
murder, I won’t agree to it.’
       ‘It’s the only way.’
       ‘What about the creature you saw?’ asked Harg.
       Thawn swung round angrily. ‘Obviously, we’ve got
to deal with that too. We know it’s lurking out there.
Once we’ve located it, we can dispose of it with depth
charges.’
       Fenner moved over to the controls. ‘I’ll check the
scanner.’ He touched a control then stared at the screen
in puzzlement. It showed only a blurred and fuzzy
darkness. ‘Nothing’s registering. Maybe the scanner’s
defective.’
       ‘Where’s Dugeen?’
       Harg checked a roster. ‘In his quarters sir, it’s his
rest period.’
       ‘Well get him down here, quick. He’s supposed to
be the radar expert isn’t he?’
       Harg spoke into the communicator. ‘Dugeen, are
you there? We need you in control.’
       After a moment, a sleepy voice said, ‘Dugeen here.
You mean now?’
       Thawn leaned over the mike. ‘Now, Dugeen!’
       ‘On my way, sir.’
       Fenner flicked a control, with no appreciable
result. ‘That’s’ scanner twelve, it’s on the same parallel.
I’ll try fourteen.’ He tried. The picture remained dark.
‘We seem to have a signal, but no image.’
       Dugeen came into control. His hair was tousled
and he was rubbing his eyes. ‘What’s the problem?’
       ‘Scanners twelve and fourteen,’ said Fenner. ‘They
won’t give any picture.’
      Dugeen sat at the radar console and checked over
the controls. ‘Well, they’re still functioning perfectly.’
‘Then why aren’t we getting any images?’
      Dugeen looked up. ‘Because there’s something
down there. Something so enormous it’s blotting them
out. I’ll try long-range.’
      A new image appeared, a kind of giant hump
taking up the centre of the screen. It might have been
an underwater mountain—or an octopus-like creature
of unimaginable size.
      Fenner looked at Dugeen. ‘Well—what do you
make of it?’
      ‘Whatever it is, it’s blotting out those other
scanners. It could be a mass of sediment, thrown up
when the lake bed moved...’
      Thawn was staring at the screen in horrified
fascination. ‘That’s it! That’s the thing I saw!’
      ‘Those scanners are hundreds of yards apart,’ said
Fenner. ‘Do you know how big that thing would have to
be to blot them out?’
      Thawn said fiercely. ‘I saw it, I tell you. It’s down
there at the bottom of the lake—and it’s alive!’

The Doctor was leading Romana through the swamps.
‘I told them they had their figures wrong straight away.
But of course, I didn’t know about Kroll then..
      Romana was exhausted after a sleepless night,
followed by what seemed like hours squelching along
muddy paths through featureless swamp. ‘What are you
talking about, Doctor?’
      ‘The Refinery of course. You see, there can’t
possibly be enough living sediment in that lake, big as it
is, to produce the amount of protein they’re getting
now, let alone what they hope to get. So—where’s it
coming from?’
      ‘Kroll,’ said Romana promptly. ‘When a thing that
size takes a nap for a couple of centuries, its feeding
processes continue independently. Through its
tentacles, probably.’
      The Doctor was a little disappointed that Romana
had already worked out the answer for herself. ‘Thawn’s
men vanished while they were taking samples, drilling
into the sediment at the bottom of the lake.’
      ‘Just like prodding a sleeping tiger with a very
sharp stick! ‘ said Romana.
      ‘That’s right. And of course, the Refinery’s heat
exchangers must have raised the lake temperature
several degrees. Then the noise of the orbit shots started
rousing Kroll.’
      ‘Doctor,’ said Romana warningly.
      The Doctor halted his lecture. ‘What is it?’
      ‘We’ve got company.’
      Green-skinned warriors had appeared from the
reed-beds, spears in their hands.
      ‘I take it these are your friends, Romana,’ said the
Doctor brightly. ‘Hadn’t you better introduce me?’
      ‘As what?’
      ‘Oh, I don’t know. Just as a wise and wonderful
person who’s come to solve all their problems. No need
to exaggerate.’
      Romana didn’t think the Doctor’s scheme would
work, but she felt obliged to give it a try.
      ‘This is the Doctor,’ she began. ‘He’s...’
      ‘Seize them,’ snarled Ranquin.
      Warriors leaped upon the Doctor and Romana,
binding their hands with grass ropes.
      ‘I told you not to exaggerate,’ said the Doctor
reprovingly.
      The Swampies dragged them away. They were
taken back to the stockade, and tied to heavy logs in
front of the chief’s hut. Someone was already tied up
there, a burly dishevelled figure, bleeding from a bruise
on the forehead.
      ‘Who’s that?’ asked the Doctor curiously.
      ‘Rohm Dutt—a popular figure in these parts not
long ago. It think he must have offended our hosts.’
      Skart, the High Priest, smiled menacingly at
Romana. ‘Soon, dryfoot, you will wish you had died on
the stone of blood.’
      Ranquin turned to Varlik. ‘Guard the dryfoots
well. See no harm comes to them. I go to the temple to
speak with Kroll. He will tell me by which of the Seven
Holy Rituals they must meet their deaths.’

Thawn and Fenner were pacing up and down the
control room, discussing ways of dealing with the
colossal menace in the bottom of the lagoon. They
weren’t getting very far.
      ‘Even depth charges aren’t going to make much
impression on a thing that size,’ argued Fenner
worriedly. ‘Not unless we hit a vital spot first go—and
there’s no way of guaranteeing that.’
      ‘We’ve got nothing else,’ growled Thawn. ‘You
think of a better way of killing it.’
      ‘Why attack it at all? You know how long we’ve
been operating here. This is the first we’ve seen of it.
Surely if the thing were hostile we’d have known about
it before? Why don’t we just leave it alone, and hope it’ll
do the same for us?’
       ‘Listen, Fenner, I’ve seen it, and you haven’t.
Believe me, it’s hostile!’ Thawn shuddered at the
memory of the giant horror rising out of the swamp.
       ‘All right, all right! All I’m saying is, depth charges
will only provoke it.’
       Dugeen looked up from his radar screen.
‘Director. The thing seems to be on the move.’
       They hurried over to the screen. The octopus-like
hump was sidling slowly, very slowly, across the screen.
       ‘Is it coming towards us?’ asked Fenner.
       ‘Difficult to say. It’s coming closer certainly, but
not directly towards us, not yet. Look, it’s stopped
again.’
       ‘Perhaps that’s how it feeds,’ suggested Fenner. ‘It
seems to be browsing across the bottom of the lake.’
       ‘I’m not interested in its feeding habits, Fenner,’
growled Thawn. ‘Not unless it tries to extend them to
us!’
       ‘No, but listen. It lives and feeds in the water.
Maybe we could poison it, saturate the area with cobalt,
kill it with the radiation. Mind you, at that size it would
need a massive dose.’
       ‘Which would contaminate our protein source for
a very long time,’ Thawn pointed out. ‘I still favour
depth charges—I’ll go and see how many we’ve got.’
       He hurried out. Fenner watched him go
despairingly. ‘Depth charges! Like sticking pins in it.’
He looked gloomily at the enormous humped shape on
the screen. ‘Take it from me, if Thawn attacks that thing
with depth charges, he’ll get us all killed.’

The Doctor and Romana waited, bound to the log.
Varlik stood guard with a squad of spear-carrying
warriors.
      ‘I didn’t like the bit about death according to one
of the Seven Holy Rituals,’ whispered Romana. ‘What
do you think they meant?’
      ‘Oh, just the usual stuff,’ said the Doctor carelessly.
‘Fire, water, hanging upside down over a pit of vipers...’
      Romana shuddered. ‘That’s only three.’
      ‘Well, use your imagination.’
      ‘No thank you, I prefer not to!’
      Rohm Dutt was recovering consciousness. He
stared confusedly about him, then caught sight of
Varlik. ‘Help me!’ he called weakly. ‘Varlik—help me!’
      Varlik strode over to him. ‘Help you—traitor?’
      ‘No, listen, Varlik, we’re friends you and I. I’ve got
money, Varlik, a lot of money, back on Delta Magna...’
      Varlik looked scornfully at him. ‘It is greed that
has brought you to this, Rohm Dutt. You have betrayed
the People of the Lakes. You brought us weapons that
were old and rotten.’
      ‘No, no,’ protested Rohm Dutt feverishly. ‘I told
you they’d been in storage a long time. They need to be
cleaned, that’s all.’
      ‘We have examined all your weapons, Rohm Dutt.
The barrels are out of true, the metal of the magazines
corroded, the ammunition defective. You thought you
would be safely away from here before we tried to use
them...’
      ‘That isn’t true. I bought the weapons in good
faith. If they are defective then I was cheated. I’ll get
you better ones. Let me talk to Ranquin, let me
explain...’
      Varlik was implacable. ‘There is nothing to be
explained. We heard you call out to Thawn, leader of
the dryfoots.’
      ‘I was confused, Varlik. I was terrified. Seeing
Kroll like that...’
      ‘Will you never learn? We are simple people,
savages if you like, but we are not fools. It was a plot.
You brought us useless weapons so that we would enter
into a battle we could not win. You cheated us, just as
the dryfoots have always cheated our people.’
      Rohm Dutt began babbling more excuses and
explanations.
      ‘It’s no good,’ said the Doctor. ‘History is against
you—quite apart from the fact that you’re lying
anyway.’
      ‘What do you know about it?’ snarled Rohm Dutt.
      ‘I know a rogue when I see one. I’ve no desire to
die in the company of a rogue, have you, Romana?’
      ‘I’ve no desire to die at all, actually.’
      The Doctor grinned sympathetically. ‘How well I
know that feeling! Look out, here comes the verdict!’
      Ranquin strode towards them, Skart at his side. ‘I
have communed with the Great One in the Temple. He
condemns the prisoners to die by the Seventh Holy
Ritual of the Old Book.’
      ‘Seven’s my lucky number,’ said the Doctor
cheerfully.
      Ranquin raised his hand. ‘Let them be taken to the
place of execution.’
      Warriors surrounded the log, cutting the prisoners
free, and seizing their arms.
      ‘Ranquin, please, please, wait,’ shouted Rohm
Dutt.
      ‘You’re wasting your breath,’ said the Doctor.
      Romana dug in her heels, forcing her guards to
come to a halt in front of the chief. ‘I demand to know
why we’re being sacrificed.’
      Ranquin pointed to the Doctor. ‘This one knows
what he has done. He aroused the wrath of the Great
One, by denying him his promised victim.’
      The Doctor nodded towards Skart. ‘He’s not a
Great One, he’s an insignificant one. If you’re going to
have someone impersonate Kroll, you might try and be
a bit more convincing.’
      Ranquin moved closer, lowering his voice. ‘When
the servants of Kroll appear in his guise, they are as part
of him, doing his bidding.’
      ‘Nonsense,’ said Romana spiritedly. ‘All you’re
doing is keeping alive a myth. None of you here have
ever even seen Kroll. You weren’t even born at the time
of the third manifestation.’
      ‘You are wrong, dryfoot,’ hissed Ranquin
triumphantly. ‘Kroll rose before us at dawn this very
day. We were waiting to attack the dryfoots when Kroll
appeared, and drove them away.’ He raised his voice.
‘Take them to the place of execution!’
      As they were dragged towards the Temple the
Doctor whispered, ‘Kroll’s on the move again already,
Romana. There’s even less time than I thought!’

Dugeen sat hunched over the scanner, watching the
sinister humped outline on the screen. Fenner hovered
worriedly over him. ‘It hasn’t moved for a good fifteen
minutes.’
      ‘There seems to be a bit of movement on the edge,
a sort of regular rise and fall. Could be its breathing
organs, I suppose.’ Suddenly he broke off. ‘Look, it’s
moving again. Coming straight towards us.’

Harg was checking the intake readings in the pump
room when he heard a sound.
      It was a kind of rumbling vibration, and it seemed
to be running through the main access pipe. He paused,
listening. The sound came again.
      The pipe burst open, and an enormous grey
tentacle flailed into the pump room.

In the control room, Dugeen and Fenner heard a
distant scream. ‘The pump room,’ shouted Fenner.
‘Come on.’
     They ran out of the room and along the steel
corridors of the Refinery.
     At the door of the pump room they stopped frozen
in unbelieving horror.
     An enormous tentacle had wrapped itself around
Harg’s waist. It was dragging him towards the gap in
the access pipe. With one last dreadful scream, Harg
disappeared into the pipe.
                      7
                The End of Harg

Fenner snatched a laser rifle from the wall rack and
began blazing away. But it was too late. The giant
tentacle had disappeared—taking Harg with it.
      Thawn came running into the pump room.
‘What’s going on?’
      ‘Quickly,’ screamed Fenner. ‘Shut down the main
flow valve.’
      The two men wrestled with the controls, spinning
wheels and pulling levers, until at last the throbbing of
the intake pump died away.
      Thawn stared in horror at the shattered pipe.
‘What’s happened in here?’
      Fenner leaned against the control bank gasping
for breath. ‘Harg has just been snatched out of here by
that monster. One of its tentacles was right inside the
main pipeline. He was in here running a check—then
we heard him scream...’ Fenner broke off, shuddering
at the memory of what he had seen.
      Dugeen was examining the ripped and shattered
pipeline. ‘Look at it! Eighty gauge collodion, ripped like
wet cardboard.’
      Fenner caught Thawn’s arm. ‘We’ve got to
evacuate, Controller. Abandon the Refinery.’
      Thawn thrust him away. ‘Not while I’m Controller.
Under no circumstances—’
      ‘But just look at the damage, sir,’ pleaded Dugeen.
‘All done by just one tentacle—the equivalent of one of
my fingers. Imagine what’s going to happen if the
creature decides to attack us in earnest!’
     ‘Listen, Dugeen, I’ve put too much into this
project to abandon it now. There’s only one thing to
do—find that creature and kill it!’
     ‘And what about the broken pipeline?’ asked
Fenner.
     ‘Switch to a secondary line and pump at half
capacity until you’ve fixed it. Well, get on with it!’
     Fenner and Dugeen went over to the controls, and
a few minutes later the pumping machinery resumed its
incessant throbbing.
     Thawn stood at the window, staring out over the
swamplands.


The Doctor, Romana and Rohm Dutt were being roped
to a wooden framework, a kind of rack, laying in the
middle of the temple floor. Behind them, Skart and
Ranquin in full ceremonial regalia, were conducting a
ceremony at the altar.
      The Doctor watched them with interest. ‘I don’t
remember that bit last night. Early Samoan influences,
wouldn’t you say? Interesting how traces of the old
Earth cultures survive in their colonies, isn’t it?’
      ‘I’m more interested in my own survival at the
moment,’ muttered Romana. She had been lashed
bodily to the wooden framework by lengths of creeper.
Now her feet, stretched out in front of her were being
tied to a kind of separate footboard that slid along the
bottom. The footboard was lashed to more strands of
glistening wet creeper, which was fastened at their other
end to metal rings in the temple wall.
      Next to her, the Doctor was being treated in the
same way. So was Rohm Dutt, tied to the frame next to
him.
       The Doctor looked round the temple and in
particular at a round glass window directly above them.
‘This Temple’s rather a hotch-potch of styles really. Still,
I prefer it to perpendicular gothic.’
       Rohm Dutt grunted as a burly warrior pulled his
lashings tighter. ‘Varlik, what is the seventh ritual?’
       ‘It is the slowest death of all,’ said Varlik sombrely.
       Romana groaned. ‘I knew it!’
       ‘I tried to persuade the Chief that only the traitor
Rohm Dutt deserved to be punished by the seventh
ritual, that you others should suffer only the first.’
       ‘What’s that?’ asked Romana faintly.
       ‘It is very simple,’ Varlik assured her. ‘They just
drop you into a pit and throw rocks on to you.’
       ‘Oh, thanks,’ said Romana weakly. ‘It’s nice to
know who your friends are.’
       ‘But Ranquin says your crimes are so great that
Kroll will only be appeased by the length of your death
agonies.’
       ‘That window is quite out of place,’ said the Doctor
suddenly. ‘Not in character at all.’
       ‘Will you please stop babbling about architecture,’
said Romana crossly. ‘We’re having a serious
conversation about our deaths.’
       ‘Architecture’s a serious subject too. ‘Where did
that window come from, Varlik?’
       Varlik looked at him in puzzlement. ‘It was
brought from Delta Magna when this temple was built.
It is very old...’
       ‘Well, I’d have sacked him,’ said the Doctor.
       Romana said, ‘Sacked who?’
       ‘The architect!’
       ‘Are you trying to take my mind off things,
Doctor? Because you’re not succeeding!’
      The Doctor grinned. ‘Did I ever tell you about the
time I met Dame Nelly Melba.’
      ‘I don’t want to hear about it.’
      ‘She had this rather extraordinary party trick, you
see.’
      ‘I don’t want to hear,’ repeated Romana firmly.
      By now Varlik’s men had completed their work.
All three captives were laying flat on their backs tied to
the wooden frame. Their feet were lashed to the
footboard, which in turn was tied by the wet swamp
creepers to the iron rings set in the temple wall.
      ‘Varlik, how long does this seventh ritual take?’
asked Rohm Dutt fearfully.
      Varlik looked down at him. ‘That depends on the
sun.’
      ‘What’s the sun got to do with it?’
      Varlik pointed to the wet and glistening vines.
      ‘These creepers grow in our swamp. They
lengthen to absorb water, shrink to half their length or
less when they are dry.’
      The Doctor looked at the contraption to which
they were tied. ‘I see! The sun comes through the
window and dries the creepers. Our bonds will tighten,
and the length of creeper will shorten and pull the
plank closer to the wall—and our feet with it, stretching
us until we snap. How very ingenious. Well, at least I
know the purpose of the window.’
      ‘You’ll be able to die happy then, won’t you,’
muttered Romana.
      Varlik looked at the Doctor and Romana with a
certain sympathy. ‘I am sorry that this must happen.
But if Kroll is not appeased by sacrifice, he will not help
the People of the Lakes.’
      ‘He didn’t do much for you the last time he
popped up,’ pointed out the Doctor cheerfully. ‘Killing
the High Priest and swallowing the Symbol of Power.’
      Ranquin and Skart came down from the altar. ‘Is
all prepared?’
      Varlik bowed. ‘All is prepared.’
      Ranquin raised his hands and began to chant. ‘O
Great Kroll, defender and saviour. These despoilers
and profaners of the temple are condemned to die by
the Seventh Holy Ritual of the Old Book. Let their
torments avert thy wrath from the People of the Lakes,
thy true followers and believers. O Most Powerful One,
so let it be!’
      Ranquin leaned over the Doctor. ‘Have you
anything to say to the servants of Kroll before you die?’
      ‘Why don’t you just call the whole thing off?
You’ve made your point.’
      ‘Foolish levity,’ said Ranquin sadly. ‘Let us leave
these sinners to their fate.’
      ‘You’re not leaving, surely. Aren’t you going to
stay and watch?’
      ‘We are not savages. Your sufferings will be
unpleasant to witness.’
      ‘It’ll be even more unpleasant to experience,’ said
the Doctor. ‘Ranquin—what was the Symbol, the secret
of Kroll’s power?’
      Ranquin hesitated. ‘What do you know of such
things, dryfoot?’
      ‘Oh, I read about it somewhere,’ said the Doctor
vaguely.
      ‘Kroll has the power of the Symbol,’ Ranquin in-
toned. ‘He knows all, sees all.’
      ‘I know Kroll has it now. He must have, he
swallowed it. But what is it?’
       ‘The Symbol was a holy relic brought here by our
ancestors at the time of the settlement.’
       ‘What was its power?’
       ‘He who holds the Symbol can see the future. The
power revealed how the dryfoots would destroy Delta
Magna with their machinery and their greed and the
evils of their great cities. That is why our people came to
settle here.’
       ‘Your people were evicted from their homeland on
Delta Magna, Ranquin. They had to come here—they
had no choice.’
       Ranquin looked curiously at him. ‘Why do these
questions concern you, dryfoot—you who are about to
die?’
       ‘Oh, I just like to get things straightened out.’
       Romana looked at the creepers. Already they had
shrunk until the bodies of the three captives were
stretched uncomfortably taut. ‘Must you use expressions
like that, Doctor. We’re the ones being straightened
out!’
       Ranquin gave the Doctor a last puzzled stare and
turned away. ‘Your minds are bent, dryfoot. It is well
that you die.’ He went out of the Temple.
       The Doctor sighed. ‘He’s got a bigoted mind and
narrow little eyes. It’s very hard to hypnotise people like
that.’
       Romana braced herself against the tug of the
creepers. ‘I see, so that’s what you were trying to do?’
       ‘I thought I might be able to get him to untie us
it’s our only chance—well, almost our only chance.’
       ‘How long will all this take?’ grunted Rohm Dutt.
       The Doctor shrugged. ‘Hard to say. I don’t know
the contraction rate of that creeper.’
       ‘I can feel it dragging on me already.’
      ‘Bet you’re sorry you didn’t stay on Delta Magna
now, eh?’ said the Doctor unsympathetically. ‘Who paid
you to bring the natives useless guns? The truth now—it
may be your last chance.’
      Rohm Dutt paused, then said reluctantly. ‘It was
the Controller of the Refinery—Thawn. He wanted a
good excuse to wipe them out.’
      ‘And who do the Swampies think sent them the
guns?’
      ‘I told them the guns were sent by the Sons of
Earth. I got a receipt from them too, marked with
Ranquin’s seal. Thawn wanted it to use to discredit the
Swampies and the Sons of Earth afterwards.’
      ‘Why?’
      Rohm Dutt groaned as the creepers contracted
further. ‘Do you have to keep on asking so many
questions at a time like this?’
      ‘Why did Thawn want to discredit the Sons of
Earth?’
      ‘They’re an organisation of cranks, back on Delta
Magna. They support these primitives, want Thawn and
his Refinery to pull out.’
      ‘Why do they call themselves the Sons of Earth?’
asked Romana.
      The Doctor said, ‘You know, that’s a very good
question, Romana. None of them can have seen Earth.’
      ‘Mother Earth, they call it,’ growled Rohm Dutt.
‘They think colonising the planets was a mistake... want
us all to return to Earth...’ He groaned. ‘My back—it’s
breaking...’
      ‘Imagination,’ said the Doctor severely. ‘That
won’t happen for quite some time yet.’
      There was a distant roll of thunder. The Doctor’s
eyes lit up and he looked hopefully at the window. But
the sunshine still streamed through, contracting the
creeper—and the strain on the bodies of the captives
grew greater and greater every moment.
     The Doctor wondered how much longer they
could last.

Thawn stood in the control room, looking at the sinister
shape on the screen of the scanner. ‘How far away is it
now?’
      ‘About six hundred yards,’ said Dugeen grimly.
      Thawn measured the image on the screen, did a
few rapid calculations and looked up in astonishment.
‘According to the scale of the scanner image that thing
must be nearly half a mile wide!’
      ‘Not far off. According to my calculations, the
central mass is about a quarter of a mile in diameter by
a hundred and forty feet high.’
      Fenner came in and looked apprehensively at the
screen. ‘Anything happening?’
      Thawn shook his head. ‘It still hasn’t moved.’
      ‘I wonder what it looks like out ,of the water,’ said
Dugeen wonderingly.
      Thawn remembered the sight of the monster
rising from the swamps. ‘What do you think it looks
like? Very big, and very ugly. How’s the repair work,
Fenner?’
      ‘The pump chamber’s clear and the fans are
working normally again.’
      ‘Good. I want you to fix the main pipeline as soon
as possible.’ Thawn looked at the humped shape on the
screen. ‘Killing that thing’s our first priority though.’
      ‘How?’ asked Fenner. ‘How many depth charges
did you find?’
      ‘Thirty-five. Should be enough. Getting them to
the creature is the main problem. We need to hit it with
the whole lot at the same time.’
      ‘That would mean going dangerously near,’
objected Fenner.
      ‘Exactly.’
      There was a grim silence.
      ‘It would help if we knew what it was,’ said
Dugeen. ‘There’s nothing that size back on Delta
Magna—Why don’t we send a message back to Delta
Magna, ask them for a rocket strike?’
      Fenner shook his head. ‘It would take too long.
And anyway, we could send them its position now, but it
could easily have moved by the time the missiles struck.
It would have to be a low intensity strike, or we’d be
caught in the blast area.’
      ‘Those depth charges of yours,’ said Fenner
suddenly. ‘Suppose we packed them all into one
container, and sank it when it was directly over the
creature?’
      ‘How would we explode it?’
      ‘We could use pressure detonators, that’s easy
enough.’
      ‘Yes, but how would you sink the tank at exactly
the right place?’
      ‘We could fix a small charge to the bottom of the
tank and fire it by remote control.’
      ‘With a tank packed with depth charges and
detonators,’ jeered Thawn. ‘The whole lot would go up
at once—and us with it! ‘
      ‘You were the one who wanted to use depth
charges,’ shouted Fenner, in sudden hysterical rage. ‘I
said all along it was too dangerous. We ought to
evacuate now, before that thing comes back.’
      ‘No,’ said Thawn flatly.
      There was another silence.
      Dugeen glanced at the oscillating blips on the
screen of his weather scanner. ‘If anybody’s interested,
there’s a hell of a big storm building up.’
      ‘That’s all we need,’ said Fenner wearily. The
storms on Delta Magna were ferocious, hours of driving
winds, lashing rains and spectacular displays of thunder
and lightning. ‘Anyone want a drink?’
      ‘No,’ snapped Thawn. ‘Batten down all exterior
hatches and put the lightning conductors up.’
      Dugeen’s hands moved over the controls. ‘Right
away, sir. By the speed it’s building up, this is going to
be a big one.’
      Thawn stared gloomily at the massive humped
shape on the radar screen. Was it moving nearer? With
a major rainstorm building up, it was impossible for
them to make any kind of attack on it at least for the
moment. They were caught between the monster and
the storm.
      All they could do was wait.
                         8
                     The Storm

Romana braced herself against the steady pull of the
creepers, her body stretched like a bow-string. ‘Doctor,
it’s getting hard to breathe.’
       The Doctor was working steadily on the bonds that
held his wrists. Unfortunately the concentration of the
creepers was tightening them all the time. ‘Don’t give
up, Romana.’
       ‘My back,’ moaned Rohm Dutt. ‘It’s breaking.’
       The constant moans and complaints of the gun
runner were almost the hardest part of their ordeal.
       ‘Never mind,’ said the Doctor cheerfully.
‘Stretching’s quite good for the spine—up to a point,
that is.’
       Romana suppressed a groan. ‘I think I’ve passed
that point already.’
       The Doctor looked up at the window. The sky had
darkened now. At least there was no more sunshine to
hasten the drying of the creepers.
       ‘Do you know I think we’re in for a storm?
Electrical storms on planetary satellites can be quite
spectacular, you know.’
       ‘What a pity we shan’t be able to sit up and watch
it,’ said Romana sarcastically.
       ‘Just try and relax your muscles, Romana.’
       ‘It isn’t my muscles, Doctor it’s my spine. My
vertebrae feel like beads on a piece of elastic.’

Nearby, in the Chief’s hut, Varlik was arguing with his
leader. ‘It is not the fate of Rohm Dutt that troubles me.
He is a traitor, he deserves to die. But the two others—
they are not from the Refinery, and they have done us
no real harm. Why must they be sacrificed?’
       ‘They are dryfoots.’ For Ranquin, it was answer
enough.
       ‘The Sons of Earth are dryfoots too,’ Varlik
pointed out. ‘Yet we need their support for our cause
on Delta Magna.’
       ‘We need no one now,’ said Ranquin arrogantly.
‘We have Kroll! ‘
       ‘Do we? I have listened to the words of the tall one.
I begin to wonder.’
       A lightning flash lit up the interior of the hut, and
a massive thunderclap seemed to shake the entire
stockade.
       Ranquin went to the doorway and looked up at the
darkening skies. Great drops of rain were beginning to
fall... Soon the torrential rain would begin lashing
down. There was another lightning flash, another
deafening thunderclap.
       ‘Have a care, Varlik,’ warned Ranquin. ‘Kroll is
our god and protector. He will punish those who doubt
him.’
       ‘Kroll killed Mensch—Mensch who was the loyalest
of his servants, Mensch who risked his life to spy on the
dryfoots. Is that protection? If Kroll is our god, why has
he attacked us in the past?’
       ‘The ways of Kroll are mysterious, but we know
this. He punishes those who disobey him—and he
punishes those who displease his servants, of whom I
am Chief! The strangers must die, Varlik. There is an
end of the matter!’
Thawn stood in the observation dome of the Refinery,
watching the approaching storm, hunching his massive
body as though he could hold off the storm by sheer
strength. The sky had darkened until it was more night
than day. Great black cloud-formations were boiling in
the sky and the lightning flashes and rolls of thunder
were coming ever closer.
      Thawn clenched his massive hands on the metal
rail below the window. He would not fail. Despite the
storm, the monster in the lagoon, the hostile Swampies
and the interfering fools on Delta Magna, the Refinery
would succeed. One day a dozen others would line the
shores of the great lagoon, feeding the hungry millions,
making him the most respected and honoured scientist
on Delta Magna.
      Thawn was an intense, lonely man and he had
invested his whole career in the Refinery project. It
could not, must not, fail.
      He turned away from the window, hurried down
the spiral staircase, along the corridor and into the
control room.
      Fenner and Dugeen were already at their post.
During a storm, the Refinery was like a ship in a storm
at sea. The violence of the storms was such that actual
damage was a distinct possibility. Everyone stood by to
take what counter-measures they could.
      Fenner said, ‘You were right, Dugeen. It’s a big
one.’
      ‘You’re telling me. The rain’s blotting out
everything on my scanners.’
      Thawn checked through the standard precautions.
‘Are the lightning conductor rods raised? We’re going
to need them.’
      Fenner nodded. ‘All checked.’
      ‘Exterior hatches fastened? All doors secured?’
      ‘Check.’
      There was a brilliant lightning-flash, and a crash of
thunder so loud that the entire room shook. ‘Hold
tight,’ shouted Dugeen. ‘Here we go!’
      Rain lashed the Refinery, hurled against it by the
driving winds.
      They waited tensely as the thunderstorm raged all
around them.
      ‘I hope that creature’s attack didn’t cause any
structural damage,’ said Thawn grimly. ‘If the wind gets
inside here it could blow the place apart.’
      The winds howled around them, and the rain
drummed savagely on the roof.
      Fenner shouted, ‘Listen to that rain! I pity anyone
out in that lot—even the Swampies!’

The Doctor looked up at the rain as it poured down on
the roof, cascading away down the round glass window
in streams. ‘What we need are hailstones as big as
bricks,’ he muttered. ‘Still, failing that...’
      The Doctor threw back his head and gave a high-
pitched shriek.
      Romana looked at him in scornful disbelief. ‘Come
on, Doctor, it isn’t that bad yet!’
      The Doctor ignored her. ‘I’ll just pitch it a little
higher.’ He shrieked again, a long, sustained, high-
pitched note of such force and purity that it hurt the
ears.
      It did more than that. Suddenly the window
shattered, showering the captives with broken glass.
Rain poured into the Temple, drenching the three
captives below.
      ‘What happened, Doctor?’ shouted Romana.
      The Doctor beamed, rainwater running down his
face. ‘That was Dame Nellie Melba’s party piece. Sonic
vibration, you see. Mind you, she could only do it with
wineglasses.’
      ‘Don’t see what good it’s done getting us soaked,’
grumbled Rohm Dutt.
      ‘You will, old chap. You will!’
      ‘The tension,’ shouted Romana. ‘It’s easing
already!’ The creepers were soaking up rainwater—and
lengthening all the time.
      ‘Come on both of you,’ called the Doctor. ‘Pull!
We’ve got to stretch the creepers while they’re still wet.’
      They heaved back on the footboard, and with a
final yank the Doctor snatched his feet free of the
loosening bonds. The creepers holding him to the
frame were slackening too, and with a few desperate
wriggles he struggled free, and got painfully to his feet.
He looked down at Romana. ‘There you are! Now you
know what it feels like to be within an inch of death!’
      ‘Stop congratulating yourself, Doctor, and get me
up!’
      ‘Patience, patience,’ said the Doctor soothingly,
and freed her from her bonds. ‘Feet out, that’s it... there
you are!’
      He cut Rohm Dutt free as well. Seconds later they
were all on their feet, stiff and aching, but alive.
      ‘That’s funny, Doctor,’ said Romana.
      ‘What is?’
      ‘Well, all the time I was tied up, my nose was
itching unbearably. Now it’s stopped!’
      ‘This is no time to be worrying about your nose.’
      ‘Ah, but that’s just it, you see, it’s a very interesting
example of displacement anxiety...’
     ‘Listen, if you want something to be anxious about,
the storm seems to be easing. The Swampies will soon
be coming out from under their umbrellas. I think it’s
time we got out of here!’

Dugeen looked up from his weather instruments. ‘The
storm’s breaking up fast now. Just dropped four points
on the scale.’
       Fenner gave a sigh of relief. ‘A few billion volts in
that one!’
       ‘It touched force twenty at the height. One of the
worst I’ve seen. Anyone out on the lagoon wouldn’t
stand a chance.’
       ‘Well there’s not likely to be anyone on the lagoon
is there? Not with our friend Jemima prowling about.’
       Dugeen glanced at the radar screen and shouted.
‘It is, too—on the prowl, I mean. Look!’ The humped
shape was moving rapidly across the screen. ‘It’s
heading for the shore, moving fast!’

The storm had ended as suddenly as it began, and the
returning sunshine sent up clouds of mist from the rain-
soaked ground.
      Ranquin strode across the dripping compound,
followed by Skart and Varlik. Several huts had been
badly damaged by the storm but no one had been
killed. Kroll had protected his servants.
      Ranquin led them into the Temple and stopped
with a gasp of sheer disbelief. The wooden frame was
empty, the sacrificial victims gone.
      Varlik looked up at the shattered window. ‘Kroll
has been here. Kroll came in the storm, and took them.’
      Skart shook his head. ‘It is not possible. There
would be more damage, traces of blood.’
      Ranquin looked at the broken window, the
loosened creepers trailing across the heavy wooden
frame. ‘They could not have freed themselves. Someone
must have helped them.’
      ‘Nobody here would help them,’ protested Varlik.
      Ranquin looked narrowly at him. ‘Are you sure of
that, Varlik? But a short time ago, you argued that two
of the captives should be freed.’
      ‘I asked you to spare the tall one and the girl from
the Ritual,’ said Varlik steadily. ‘But that is all I did,
Ranquin. I swear it.’
      Ranquin glared suspiciously at him. ‘By the powers
I hold from Kroll, I shall learn the truth. But I tell you
this—if the dryfoots are not found and sacrificed
according to our Holy Ritual, then all our people will
suffer the anger of Kroll.’
      ‘They cannot have gone far,’ said Varlik slowly.
‘No dryfoot can find the secret paths through the
swamps.’
      ‘Go after them and find them,’ ordered Ranquin.
‘The dryfoots must die!’
                   9
       Escape Through the Swamps

       Cautiously the Doctor led them through the
swamps, his eyes studying every inch of the ground in
front of them. Romana glanced over her shoulder.
Reeds were rustling behind them, a rustling not caused
by wind. She caught a flash of sunlight on a spear-blade.
‘Can’t we go any faster, Doctor? I think they’re coming
after us.’
       ‘We could, but I wouldn’t advise it. One slip here,
and you’re in up to your ears.’ The Doctor paused. ‘The
next bit of firm ground’s just over there—I think! We’ll
have to jump!’
       Romana looked dubiously at the spot the Doctor
was indicating. ‘Are you sure?’
       ‘There’s only one way to find out!’ The Doctor
took a flying leap and landed safely on firm ground. ‘It’s
all right. Come on!’
       Romana jumped, landing beside the Doctor.
       Rohm Dutt hesitated.
       ‘Come on, if you’re coming,’ shouted the Doctor.
‘Or would you sooner wait for our friends?’
       Clumsily, Rohm Dutt jumped, and landed beside
them.
       They hurried on their way.

Thawn and Fenner stood looking over Dugeen’s
shoulder at the radar scanner. At the moment it was
completely blank.
     Dugeen adjusted various controls with no success.
‘Sorry, Controller, it’s gone right off the scanner.’
       ‘Well where is it then?’
       ‘As far as I can tell, the thing just ploughed
straight on into the swamp. It must be somewhere
underneath it now.’
       ‘Can’t you get a track on it?’
       ‘No sir. The swamp’s got a viscosity level of around
forty per cent solids. Under those conditions, the
radar’s blind.’
       Fenner looked at the blank screen. ‘The
astonishing thing is it didn’t seem to slow up at all when
it left the lagoon. It seems to be able to move as easily
through swamp-mud as through water.’ He punched up
a chart on a nearby readout screen. ‘Now, it’s moving
on a bearing of ninety-seven degrees. You know where
that’s going to take it, Controller?’
       ‘No—where?’
       ‘Straight towards the Swampie Settlement!’
       ‘Maybe it’s just coincidence,’ suggested Dugeen.
       ‘Maybe it is. But it could have headed off in any
direction. But it just happens to be heading straight for
the Settlement—which means the Swampies have
something of a problem.’
       ‘But it couldn’t possibly know the Settlement’s
there,’ argued Dugeen. ‘I mean, the place is miles away.’
       ‘It knew Harg was in the pump chamber, didn’t it?
Maybe it’s got a highly sensitive mechanism for
detecting food.’
       Thawn’s heavy features broke into a smile. ‘Maybe
it has—in which case, as you say, the Swampies have
rather a problem.’
       Fenner looked curiously at him. ‘You know I don’t
particularly like Swampies, Controller. But I can’t say I
really hate them either—not the way you do.’
     ‘Oh, I don’t hate them, Fenner. I just want them
removed from the scene—permanently. I’ve spent years
persuading the Government to back this project.’
Thawn’s voice rose to a hysterical shout. ‘And now it’s
on the verge of success, I’m not going to be stopped by
any lily-livered sentimentalising about the fate of a few
primitive savages.’ He drew a deep breath. ‘I’ve got two
problems at the moment—the Swampies, and that
monster. If one of them wipes out the other, that’s fine
by me. I don’t even care very much which one wins—
because I shall exterminate the survivor!’

The green-skinned warriors ran lightly and confidently
along the almost invisible paths through the swamp.
They had no need to wait, and look, and feel their way.
Like all their people, they had known the swamps from
childhood, had learned almost to sense when ground
was firm. Spears in hand, they followed the trail of the
Doctor and his friends. Soon they would overtake them,
and Kroll should have his sacrifice.
      The air in the swamp was warm and humid, the
reeds restricted vision to a few feet and the ground was
soft and treacherous underfoot. It was like trying to
escape blindfold through a tub of treacle, thought
Romana. ‘How much further, Doctor?’
      ‘Not far. I hid the boat in some reeds by the main
channel. As long as no one’s moved it...’ Suddenly the
Doctor held up his hand. ‘Sssh!’
      ‘What is it, Doctor?’
      There was a strange, glutinous sucking sound. It
seemed to come from just ahead of them.
      ‘Listen,’ said Romana. ‘What’s that noise?’
      The sucking squelching sound became louder.
      The Doctor pointed. ‘Look!’
      Just ahead of them, a whole section of path
suddenly disappeared, sucked down beneath the marsh
by some unseen force.
      ‘We’re being hunted,’ whispered the Doctor.
      ‘We know that,’ growled Rohm Dutt. ‘They’ve
been on our trail for hours.’
      ‘I don’t mean by the Swampies—I mean by Kroll!
He’s here—underneath the swamp!’ The Doctor looked
round. ‘Freeze, everybody. Don’t so much as twitch an
eyebrow.’
      They all stood very still.
      All around them the marsh seemed to heave and
bubble. A line of subsidence moved across it, like the
wake of some vast underwater shape. It seemed to be
travelling towards them.
      Rohm Dutt’s nerve suddenly broke. He began
sprinting desperately across the swamp, leaping from
tussock to tussock, blundering in and out of mud pools,
crashing through the reeds like an elephant gone
berserk.
      An enormous grey tentacle rose out of the swamp,
flicked around his waist, and plucked him out of
existence. There was a dreadful bubbling scream, a
squelching, sucking sound—then silence.
      Romana covered her face with her hands. ‘That
was horrible, Doctor. Horrible!’
      The Doctor put a consoling hand on her shoulder.
‘Yes, it was. I told him not to move. Kroll hunts by
surface vibrations, you see. He couldn’t miss Rohm
Dutt, not with him thumping about like that. Kroll’s
primarily a vegetarian—but just recently he seems to
have learned that anything that actually moves is a
potential source of wholesome nourishment.’
      ‘Like us, you mean?’
      ‘That’s right. Or the Swampies. They’d better not
get too close to their god—’ The Doctor broke off. ‘And
speaking of Swampies, we’d better get a move on.’
      There was a rustling in the reeds behind them—
and it was getting nearer.

Varlik knelt by a patch of muddy ground. Two sets of
tracks—the tall one and the girl. No sign of Rohm Dutt
though—he must have split off from the others. It
didn’t matter. There were other hunting parties in the
swamp. Varlik rose and beckoned his men onwards.

The Doctor and Romana picked their way through the
swamp.
      Despite the need for speed, they were careful to
move as lightly as they could. With the death of Rohm
Dutt fresh in their minds, they wanted to cause no
heavy vibrations to summon Kroll from his lair beneath
the swamp.
      ‘We’re here,’ whispered the Doctor at last, and
pointed. A path sloped away downwards through the
reeds. At the end of it they could see the edge of the
lagoon—and the Doctor’s boat, still moored to its tree-
root.
      They ran swiftly down the bank and the Doctor
held the boat steady while Romana jumped in. He
scrambled in after her, cast off and paddled swiftly
away.
      A spear flashed across the lagoon, and thudded
quivering in the side of the boat.
      ‘Look, Doctor!’ screamed Romana.
      A band of Swampie warriors was pouring down
the bank. Several of them threw spears, though luckily
all missed. The Doctor paddled desperately, increasing
the range as quickly as he could.
      They saw Varlik leading the band. He pointed
towards them and shouted an order. One of the
warriors dived into the pool and swam strongly towards
them, a knife between his teeth.
      The Doctor paddled even harder, but soon the
man was abreast of them. A green arm snaked out of the
water, trying to overturn the boat.
      The Doctor stopped paddling and discouraged
their attacker with a fierce crack on the head with his
paddle. The warrior fell back and the Doctor drove the
boat onwards.
      But the delay had lost them distance. Now another
warrior was in the water.
      The Doctor paddled desperately on. Then
suddenly he stopped, and sat very still. Everything went
quiet. ‘What is it, Doctor?’ whispered Romana.
      ‘Look!’
      Ahead of them the water began to boil and seethe
and bubble. Something was rising out of the lagoon,
something colossal, terrifying, malevolent.
      Like a living mountain, Kroll rose from beneath
the lagoon.
                         10
                     The Rocket

It was, thought the Doctor, quite the largest living
creature he had ever seen. The immense blubbery grey
sac of the body was supported on immensely long
tentades. There were no eyes—but somehow Kroll
sensed the movement of the warrior swimming for the
boat.
       An incredibly long tentacle flicked out and plucked
the man from the water, carried him screaming through
the air and thrust him towards the monster’s gaping
mouth, where feeding mandibles seized him and thrust
him inside.
       ‘Freeze!’ hissed the Doctor.
       Romana froze.
       They sat quite still, the boat drifting gently on the
lagoon. The Swampie warriors on the bank threw
themselves to the ground in terror—a fact which
undoubtedly saved their lives.
       With a monstrous bubbling and seething of the
waters, Kroll sunk back beneath the lagoon.
       Varlik and his warriors raised their heads, and
seeing that Kroll had gone, they turned and fled.
       In the boat, Romana let out a long, shuddering
sigh. ‘It’s gone.’
       The Doctor nodded. ‘Yes, it’s gone. For the
moment...’
       ‘What a good thing you realised that it reacts to
movement!’
       ‘Yes, wasn’t it?’ The Doctor raised his paddle. ‘Still,
let’s get out of here, before it gets hungry again.’
     With slow careful strokes, the Doctor drove the
boat across the lagoon.

Thawn was pacing up and down the control room.
‘We’ve got to find out what that creature’s doing.
Dugeen, train a scanner receptor aerial on the
Settlement. If that thing does attack the Swampies we
may be able to see something from here.’
      ‘Right, sir.’
      ‘The Settlement’s over two miles away,’ protested
Fenner.
      ‘Even so, if it’s as big as we think it is...’ Thawn
went over to a separate control console.
      Dugeen looked up puzzled. ‘What are you doing,
sir?’
      ‘Just checking the next orbit shot is charged and
ready to fire:
      ‘Everything’s ready, sir. I checked it myself. But
the next orbit shot isn’t due for two hours, Controller.’
      ‘This time it might be a little early—’
      Dugeen interrupted him. ‘Look, sir. I’m getting
something on the screen.’
      There was a bubbling, sucking sound, a high
whistling scream and the immense grey shape of Kroll
rose from the swamp beside the Settlement.
      In the stockade below, Swampies fled in terror in
all directions. Kroll’s mighty tentacles flicked out,
snatching them up and thrusting them into the gaping
mouth. Once again Kroll was manifesting himself to his
worshippers.
      The horrific scene at the Settlement was visible
though blurred and miniaturised, on the screen of the
Refinery scanners.
      Fenner gave a whistle of sheer disbelief. ‘It is as big
as we thought—bigger!’
      Thawn was busy at the rocket control console. ‘A
hundred tons of compressed protein will still smash it to
fragments.’
      Fenner came over to join him. ‘What are you
planning to do?’
      ‘I’m going to blast our next rocket shot right into
the middle of that overgrown octopus.’
      Dugeen was horrified. ‘You can’t do that, sir!’
      ‘Oh can’t I?’ Thawn adjusted the controls.
‘Maximum depression bearing nine seven...’
      ‘You’re mad,’ whispered Dugeen. ‘An orbital
rocket at two miles range? Think what it’ll do to the
Settlement!’
      Thawn chuckled. ‘Ever heard that old
expression—killing two birds with one stone?’
      Fenner came to Dugeen’s support. ‘Controller,
think what you’re doing.’
      ‘I have thought.’
      ‘You know how thin the atmosphere is here. The
rocket fuel will go up. The explosion could cause a
fireball big enough to asphixiate us.’
      ‘I doubt it.’ Thawn went on working.
      ‘You doubt it? Are you sure? Have you worked out
the risk?’
      Thawn threw a switch. ‘Countdown commencing.
Places, everybody.’
      Dugeen turned to Fenner. ‘He’s mad I tell you.
We’ve got to stop him!’
      Fenner shrugged and turned away. ‘He’s the Con-
troller. It’s his responsibility, not mine.’
      Dugeen renewed his appeal. ‘Controller, please,
you can’t do this. You’ll be killing innocent people.’
      ‘They’re only Swampies.’
      ‘Call them what you like. They’re people, no
different from you or me.’
      ‘They’re very different, I assure you Dugeen.’
Thawn’s voice hardened. ‘Now, get back to your place.’
      ‘No.’
      ‘You refuse to obey my lawful orders?’
      Dugeen stood his ground. ‘On moral grounds, sir.
Look, if you fire that rocket it isn’t just the monster that
will die. You’ll be destroying a civilisation that’s older
than our own.’
      ‘The Swampies? Civilised? You know, Dugeen,
you’re talking like one of those fanatics from the Sons of
Earth.’
      ‘We are not fanatics,’ shouted Dugeen in sudden
rage. ‘All life began on Mother Earth—and all life is
sacred!’ He tried to pull Thawn away from the controls.
      Thawn shoved him back, and produced a blaster
from under his tunic. ‘I’m giving you one last chance,
Dugeen.’
      Undeterred by the gun, Dugeen went on
struggling. Thawn smashed him to the ground with a
savage blow from the butt.
      He turned on Fenner. ‘Now, are you going to give
me an argument?’
      ‘No, Controller,’ said Fenner woodenly. He went
to his place. ‘Countdown commences in two minutes.’
      Thawn sank back into his own control chair.
‘Right. Keep a track on that thing for me.’

The Doctor and Romana came into the pump room,
looked at the gaping hole in the shattered pipe. ‘Kroll?’
whispered Romana.
      The Doctor nodded. ‘Looks like it. Let’s see if
there are any survivors.’
      As they moved along the corridor to the control
room they heard angry voices.
      The Doctor paused outside the door and was just
in time to hear the argument between Thawn and
Dugeen, and to see the younger man struck down. He
turned and hurried away.
      Romana followed him. ‘Where are you going, Doc-
tor?’
      ‘The rocket silo. If he fires that orbital shot there’ll
be nothing left of Kroll, or the Swampies either. If I try
and stop him from the control room he’ll just shoot me
down. Got to do it from out here somehow.’
      The Doctor ran round to the rear of the Refinery.
When he reached the rocket silo, he set to work, turning
the wheel that opened the metal door of the concrete
firing bay. ‘Thawn’s using the over-ride firing
mechanism. There must be some way of disconnecting it
from this end.’
      ‘Doctor, if the rocket is fired while you’re in
there—’
      ‘Yes,’ said the Doctor thoughtfully. ‘Maybe we’d
better say goodbye now! Goodbye, Romana.’
      He slipped into the firing bay.
      ‘Doctor!’ called Romana. She ran in after him.
      The firing bay was little more than a concrete
walled pit, holding the orbital rocket on its steel gantry.
Normally the rocket would have been aimed directly
up-wards but now it was tilted over at an angle, aimed
like some great space cannon at the Settlement.
      The Doctor climbed quickly up a narrow steel
ladder, and opened a hatch in the rocket’s side, just
below the firing vents.
    Studying the control panel for a moment, he set to
work.

‘Sixty seconds to countdown,’ said Fenner. Thawn
nodded. ‘Fire primaries.’
      ‘Primary ignition functioning.’
      ‘Continue countdown.’
      ‘Fify seconds.’
      Intent on their tasks, neither Thawn nor Fenner
noticed the huddled figure of Dugeen beginning to stir.

There was a growing rumble as the rocket burners
began to heat up. Clouds of white vapour enveloped the
Doctor, as he perched precariously on his ladder,
working on the control panel with his sonic screwdriver.
     Romana stood looking up from the ground below.
‘Doctor, we’re too late, they’ve commenced ignition.
Come down!’
     ‘Get out of here, Romana. Just get out!’
     Feverishly the Doctor went on working.
     The rocket hull was hot to the touch now and
there was a fiery glow from the vents. The Doctor’s
head was swimming with the heat, and he almost fell
from the ladder...

‘Thirty seconds to countdown,’ said Fenner. ‘Burner
eight hundred and increasing.’
      Suddenly Dugeen was on his feet, lurching
towards the main control console. ‘No, Thawn, I won’t
let you do it.’
      Thawn raised his blaster. ‘Dugeen, if you touch
that abort button, I swear I’ll kill you.’
      ‘Then kill me. But you’re not going to wipe out an
entire race as well.’
     As Dugeen hurled himself forward and pressed
the abort button, Thawn fired.
                        11
                     Countdown

The force of the laser blast hurled Dugeen across the
room, and slammed him against the wall. He stared at
Thawn with astonished disbelief for a moment, then slid
slowly to the ground...
      Thawn glared wildly at Fenner. ‘I warned him.
You heard me warm him! ‘
      Fenner went over to the body, knelt to examine it,
straightened up. ‘That was murder! Cold-blooded
murder.’
      Thawn wasn’t listening to him. He was staring at
the control console, where the digital clock was still
flicking away the last seconds of the countdown.
Twelve... eleven... ten... ‘Look! The countdown hasn’t
stopped. It hasn’t aborted.’
      Fenner looked at the instrument panel. ‘The
master cut-out’s failed. You killed him for nothing.’
      The counter clicked on. Five... four... three... two...

The Doctor had removed the front of the control panel
only to reveal an immensely complicated mass of solid
state circuitry. There wasn’t a hope of reconnecting it in
the seconds now available. ‘When in doubt—cut
everything,’ thought the Doctor, and smashed his sonic
screwdriver against the circuit panel. It exploded in a
shower of sparks, hurling the Doctor from the ladder to
the concrete floor below.

Two... one... the countdown dock froze.
      Thawn stared at it in amazement. ‘I don’t
understand. First it didn’t abort then—’
      Fenner was studying the read-out screen.
‘According to the computer, there’s a fault in the
primary ignition panel—on the rocket itself.’
      Thawn turned to the door. ‘We can soon fix that!’
      ‘Too late.’ Fenner nodded towards the radar
screen, where the massive, humped shape was subsiding
towards the bottom of the frame. ‘It’s submerging again,
back into the swamp. You’re not going to hit it with
your rocket down there.’
      Thawn shot an angry glance at Dugeen’s huddled
body. ‘If that spineless fool hadn’t interfered...’
      ‘He’d still be alive, wouldn’t he?’ There was cold
anger in Fenner’s usually calm voice. ‘That was murder,
Controller.’
      ‘It was justifiable homicide. You heard me warn
him not to touch that abort button. He was trying to
commit an act of sabotage.’
      ‘He didn’t like your methods. That does not make
him a saboteur. I’m reporting what happened the
moment we get back.’
      ‘He was a spy,’ blustered Thawn. ‘A spy from the
Sons of Earth. It’s obvious now—they sent him here to
cripple my project, any way they could.’
      ‘Is that a reason for killing him?’
      Thawn hammered a fist on to the console. ‘All
right, Fenner, that will do! No doubt you can make
things sound bad for me when we get back to Delta
Magna. But suppose we don’t get back, eh? Suppose
that thing destroys us both? That’ll be his fault—not
mine!’ With a final glare at Dugeen’s body, he marched
for the door.
      ‘Where are you going?’
     ‘To check over that rocket just in case we get
annther chance!’

The Settlement was wrecked, the stockade and most of
of the flimsy grass huts smashed to fragments, by Kroll’s
flailing tentacles. Many of the People of the Lakes were
dead, snatched into the gaping maw of Kroll, to feed his
unending hunger.
       A few survivors huddled together in the ruins,
grouped around their Chief.
       Ranquin was fighting for his survival, and for his
beliefs.
       ‘Why?’ demanded Varlik. ‘Why did this happen,
Ranquin. Why has Kroll turned against us?’
       The Chief’s voice was assured and steady, and the
light of fanaticism still burned in his eyes. ‘It is our
punishment for letting the dryfoots escape us.’
       ‘But when we almost had them, it was Kroll
himself who came between us.’
       ‘It was a test. The great one was testing your faith.’
       ‘A test?’ shouted Varlik furiously. ‘Nual was killed
there—and how many others have died here today?’
       Ranquin’s faith was unshaken. ‘Kroll took their
lives, in place of the sacrifice we failed to give him. But
he will not be appeased until that sacrifice is made. The
dryfoots must be found—and sacrificed. Only then will
Kroll restore his favour to his people. Where are they?’
       ‘Our scouts report they were heading for the
Refinery.’
       Ranquin folded his arms, his face implacable.
‘Then we must follow. The dryfoots must die!’
The Doctor lay flat on his back on the concrete floor of
the rocket bay. Romana knelt beside him, trying to
revive him. ‘Doctor, wake up! Are you all right?’
       The Doctor sat up so suddenly he made her jump.
‘What? Yes, of course I am. Just a touch of oxygen
starvation. Blacked out for a few seconds.’
       ‘A few minutes. more like it.’
       ‘Well I needed the rest—minutes! Did you say
minutes?’
       ‘Minutes,’ said Romana firmly.
       The Doctor jumped to his feet. ‘We’d better get
out of here! ‘ He looked up at the rocket, with its
shattered control panel. ‘If we’re found loitering,
somebody might put two and two together.’
       He opened the door and found himself facing
Thawn’s blaster. The Doctor backed away. ‘You’re
putting two and two together, aren’t you?’
       Thawn smiled with grim satisfaction. ‘So you came
back.’
       ‘I remembered I went off without saying goodbye
properly. This is my friend Romana, by the way. You
remember, I was looking for her?’
       ‘Hello,’ said Romana politely.
       Thawn ignored her. ‘And what are you doing here
this time?’
       ‘Just closing the blast door. It really shouldn’t have
been left open like that,’ said the Doctor severely. ‘Very
dangerous.’
       ‘And who opened it, I wonder?’
       ‘The leaning lady?’
       ‘I’ve no time for games,’ said Thawn abruptly. ‘Put
your hands up where I can see them, and walk straight
ahead of me—both of you.’
       ‘Haven’t you forgotten something?’
      ‘What?’
      ‘You didn’t say “Don’t make any sudden moves”.’
      ‘Don’t make any sudden moves,’ repeated Thawn
humourlessly.
      Stepping aside, he waved them towards the door
with the blaster. ‘Now get moving—straight to the
control room.’
      The Doctor and Romana raised their hands and
obeyed.
      The pump-room window was thrust open by a
green hand. Varlik slid silently over the sill, and
dropped into the room. He looked round for a
moment, and then gave a low whistle.
      Ranquin followed him through the window, then a
handful of warriors—all that Ranquin had been able to
persuade to accompany them. The others were hiding
in the swamps, terrified Kroll would reappear.
      There was a whirr and a thud as the pumping
machinery began a new cycle.
      Ranquin jumped. ‘What is that?’
      ‘Machinery,’ said Varlik. ‘It is only machinery.’
      Ranquin glared angrily around the room. ‘This
place is an abomination.’
      Varlik knew more about technology and had less
fear of it. ‘On Delta Magna all the dryfoots live in these
metal boxes.’
      ‘When we have completed our task, I shall ask
Kroll to destroy this place,’ said Ranquin grandly.
      ‘And why should Kroll do as you ask?’
      Ranquin glared angrily at his rebellious war chief.
‘What is this insolence, Varlik?’
      ‘If Kroll is the Great One, and you are but his
servant...’
      ‘While the People of the Lakes serve and do
honour to Kroll, he will protect us against those who
invade our waters.’
      ‘Kroll has destroyed our village, killed most of our
people. Was that to protect us?’
      ‘These are blasphemous questions, Varlik!’
      ‘I speak only what is in all our minds, Ranquin.’
      There was a murmur of agreement from the
others.
      Desperately Ranquin fought to regain control...
‘Now hear me, all of you! We promised Kroll the lives of
the two dryfoots who profaned his Temple. We failed to
keep that promise! ‘
      Ranquin paused impressively. ‘I tell you this. Kroll
will not rest easily beneath the waters, he will not cease
to punish us until we have sacrificed the dry-foots, and
he has eaten of their souls. Now, follow me!’
      Raising his spear, Ranquin strode away.
      For a moment Varlik hesitated, and so did the
others. But their world had been shattered and
Ranquin’s belief was all they had to cling to now.
Silently, they followed him down the corridor.

The Doctor and Romana reached the control room just
as Fenner was dragging Dugeen’s body into an
adjoining storeroom.
      The Doctor looked down at the body. ‘I don’t
think that was necessary.’
      ‘Neither do I,’ said Fenner. He dragged the body
into the store room, came out and closed the door.
      ‘He tried to interfere, Doctor,’ said Thawn. ‘Just as
you have interfered.’ He glared wildly at them.
      ‘You’ve no proof of that.’
      ‘You were in the silo. The blast door to the firing
bay was open, and there was a malfunction in the orbit
shot.’
      ‘Circumstantial evidence?’ said Romana feebly.
      ‘Well it satisfies me.’ The hand that held the
blaster was shaking with rage. ‘You’re saboteurs, both of
you. There’s no reason why I shouldn’t execute you
both now!’
      ‘I wouldn’t,’ said Fenner laconically.
      ‘And why not?’
      ‘Because we’re going to need all the help we can
get. Take a look at that!’
      He pointed to the radar screen. The massive shape
of Kroll had risen again from the depths.
      ‘Oh, look,’ said the Doctor softly. ‘It’s coming this
way!’
      ‘That’s right,’ snapped Fenner. ‘And this time it’s
coming to attack us!’
      The Doctor nodded his agreement. ‘You’re
probably right—I doubt if it’s coming to shake hands,
anyway.’
      Fenner said, ‘We’d better send an SOS to Delta
Magna right away. They’ll send a shuttle craft to get us
out of here.’
      The new crisis was almost too much for Thawn’s
already-slipping control. ‘Shut up, all of you!’ he
screamed. ‘How do you know it’s coming to attack us? It
it was going to do that, it would have come here before it
attacked the Settlement.’
      ‘Maybe it’s saving you for pudding?’ suggested the
Doctor.
      This flippancy in face of the threat to his Refinery
was too much for Thawn. He swung round on the
Doctor, aiming the blaster at his head. ‘I warned you,
Doctor.’ His voice was trembling with hysterical fury. ‘I
told you to shut up. Now I’m going to shut you up —for
ever! ‘
      Thawn’s finger tightened on the trigger.
                      12
               The Power of Kroll

As he looked at the gaping muzzle of the blaster and at
the mad eyes above it, the Doctor realised that at last
he’d made one joke too many.
       A spear flashed across the room, and thudded into
Thawn’s heart.
       Thawn stared at the jutting spear in astonishment,
then fell dead to the floor, the blaster clattering from his
hand.
       The Doctor turned to see Ranquin in the doorway,
Varlik and his warriors behind him.
       The Doctor raised his hands pacifically. ‘All right,
all right, we surrender.’ He nodded amiably at Ranquin.
‘What do we get this time? The Eighth Holy Ritual?’
       In all the excitement nobody noticed that the
humped image on the scanner was now so large that it
blotted out the entire screen...

Kroll rose from the lagoon in all his terrifying majesty,
and loomed over the frail metal structure that rose from
the water’s edge. He could not see it, because Kroll was
blind, but he could sense it, feel the strange alien
vibration of the machinery. The vibration meant
movement, movement meant life—and to Kroll life was
no more than food, fuel for his ravenous bulk.
     Swaying on his tentacles Kroll lurched towards the
Refinery...

Ranquin was making a long rambling speech, accusing
the Doctor of blasphemy and profanation, and of
bringing down the wrath of Kroll on the People of the
Lakes—presumably by not letting himself be meekly
sacrificed.
      ‘Many have died because of you, dryfoot,’ Ranquin
conduded bitterly. ‘You have been promised to Kroll —
and now he shall have you. Kroll, who is all wise, all
seeing...’
      ‘All baloney!’ interrupted the Doctor rudely. ‘Kroll
couldn’t tell the difference between you and me and
half an acre of dandelion and burdock—it’s all food,
and that’s all that interests him.’
      ‘I tell you Kroll will not be denied!’ screamed
Ranquin. He snatched a spear from one of his warriors,
raised it and fell reeling as a massive weight crashed
against the Refinery.
      Kroll had arrived.

The imense grey sac that was Kroll’s body pressed
against the Refinery tower, his tentades wrapped angrily
around it. The metal felt hard and alien to his touch, yet
somehow he sensed there was life, food, somewhere
inside it.
      With a whistling roar of rage and frustration,
Kroll’s tentades explored the structure, seeking for his
prey.

The entire Refinery was swaying and shaking with the
fury of Kroll’s attack and Ranquin and his warriors
huddled together in terror.
      ‘What are we going to do?’ shouted Fenner. ‘Just
sit here while that thing smashes the place to pieces?’
      ‘Ask Ranquin,’ suggested the Doctor calmly. ‘He’s
supposed to be the Kroll expert.’
      ‘You have brought death to us all, dryfoot,’
screamed Ranquin.
      ‘Oh, so that’s your expert opinion is it?’ grumbled
the Doctor. ‘It’s all my fault! You know, Romana, I
think if we—Romana?’
      Romana was standing just outside the door,
looking through the corridor window. ‘Romana, come
back in here,’ called the Doctor.
      Romana peered out. She was trying to get a good
look at Kroll. It was difficult actually to see much since
the monster’s bulk obscured most of the window. ‘I just
want to see it, Doctor.’
      He ran into the corridor after her. ‘Come away from
that window!’
      ‘It’s all right, Doctor, it doesn’t know we’re here—’
The window shattered in a shower of plasti-glass, and
an enormous grey tentacle came groping through.
      The Doctor grabbed Romana’s arm, yanked her
back into the control room, and closed the door behind
them. ‘If it doesn’t know we’re here, it’s making some
pretty shrewd guesses! ‘
      The door shuddered as the tentacle thumped
against it. ‘That door’s not going to hold,’ shouted
Fenner. ‘It’s got us trapped.’
      ‘Now, now, Fenner, don’t give up,’ said the Doctor
cheerfully. ‘Can you get the centrifuge running?’
      ‘Yes, I suppose so. Why?’
      ‘Switch it on!’
      ‘Why? The feeder-tanks only half full. All it’ll do is
kick up a racket!’
      ‘Exactly Fenner—noise! Kroll hunts by sensing
vibration. Let’s give him some to think about. Confuse
him with noise and he won’t detect us so easily!’
     Fenner switched on the centrifuge. Soon the
roaring whine of its machinery joined the steady
throbbing of the pumping system.

The heaving grey mass of Kroll’s body shuddered wildly
as the Refinery began to vibrate. Maddened by the
sound, the monster lashed at the steel platform in fury,
trying to find and destroy the source of the vibration.
       The tentacle outside the control room whipped
back through the window, and joined the others in their
flailing attack...

Romana listened at the door. ‘I think it’s gone, Doctor.
      ‘Yes, but for how long? When it gets tired of
attacking metal girders, it’ll come looking for food
again.’
      Ranquin straightened up, trying to retrieve his lost
dignity. ‘The Great One is merciful. Kroll has heard my
prayer.’
      ‘All Kroll has heard is the sound of dryfoot
machinery,’ said Varlik scornfully.
      The Doctor leaned over Fenner. ‘Can you make
any more noise?’
      ‘I could start the compressors. they make enough
row. And the emergency Klaxons...’
      ‘That’s the idea. Give it everything you’ve got,
Fenner. All the noise you can make. Just keep it busy!’
      Fenner’s hands moved over the controls and soon
the steady thump, thump, thump, of the compressors
joined the throbbing of the pumps and the high-pitched
whine of the centrifuge. The wail of the sirens added to
the din.
      Ignoring the row, the Doctor went over to the
door and slid it cautiously open. The corridor was clear.
He took the Tracer out of his pocket and stood for a
moment, bracing himself.
      Romana went over to him. ‘Where are you going,
Doctor?’
      The Doctor grinned ruefully. ‘To test a theory. All
theories have to be tested sometime. You stay here—just
in case I’m wrong!’
      ‘Wrong about what?’
      ‘About Kroll—and the symbol of his power.’
      The Doctor disappeared down the corridor.

When the Doctor had gone, Ranquin shouted, ‘Come,
my people. Let us leave this place of abomination to be
destroyed by Kroll. The Great One will not harm his
true servants.’
      He led his warriors away from the control room
and through the shuddering, vibrating steel corridors
until they reached the pump room where they had first
entered.
      As they crossed the threshold, a flailing tentacle
thrust through the shattered hole in the main pipe-line.
      Varlik and the others leaped back, but Ranquin
moved forward, his face ecstatic. ‘Master, hear the voice
of thy servant Ranquin. Great Kroll, defender and
saviour of thy People of the Lakes, let not thy wrath fall
upon thy true servant.’
      As if responding to Ranquin’s voice, the tentacle
groped hungrily for him.
      Ranquin fell to his knees, holding up his hands in
supplication. ‘Great One, we ask only that the dry-foots
and all their abominations be crushed by thy mighty
power. Take them as thy sacrifice and spare thy true
servant.’ The tentacle coiled around Ranquin’s body
and dragged him screaming into the pipe-line.
     Varlik and the others turned and fled in terror.
     The worship of Kroll was ended.

The Doctor ran along the corridors until he found a
steel ladder leading to the upper level. He climbed it,
opened a metal door and found himself on the cat-walk
that ran round the Refinery superstructure.
      He was within a few feet of the body of Kroll.
Pulling sluggishly, the colossal sphere of the monster’s
underbelly blotted out the horizon.
      Tracer outstretched, the Doctor advanced on the
monster, like a knight attempting to attack the most
colossal of dragons. He switched on the Tracer and its
electronic hum shot up to maximum.
      The Doctor drew a deep breath. ‘Well, I’ve had a
happy life. Can’t really complain. Nearly seven hundred
and sixty, not a bad age...’
      A stray tentacle lashed blindly over the railing,
sweeping him off his feet—and knocking the Tracer
from his hand. It rolled across the metal floor.
      The Doctor leaped for it, but the tentacle wound
round his body dragging him towards the edge of the
platform—towards the waiting maw of Kroll, whose
feeding-mandibles waved hungrily.
      As he was dragged past the Tracer, the Doctor
made a last frantic lunge and managed—just—to curl
his fingers round the slender wand.
      The tentacle dragged him to the edge of the
platform and the Doctor lunged like a swordsman,
thrusting the Tracer deep into the rubbery grey
underbelly of the monster.
      The result was extraordinary.
      For a moment the great globular body, the flailing
tentacles, the gaping mouth of Kroll were irradiated
with fierce blue fire.
      Kroll vanished.
      The Doctor stood alone on the platform, the
Tracer in his hand. Attached to the end of the Tracer
was a large, irregularly-shaped crystal—the fifth
segment of the Key to Time.
      The Doctor heaved a great sigh of relief.
Detaching the segment, he went back inside the
Refinery.

In the control room, Romana and Fenner, were waiting
for him. Varlik and the other warriors were there too.
They had fled back there from the pump room after
Ranquin’s death.
       Fenner switched off the machinery, and a kind of
astonished silence filled the control room.
       The Doctor held up the crystal and beamed at
Romana. ‘There you are—the fifth segment.’ He slipped
it into his pocket.
       Romans was overjoyed. ‘Well done, Doctor!’
       Varlik was staring in astonishment at the Tracer.
‘You killed Kroll... with that stick?’
       The Doctor slipped the Tracer into his pocket. ‘It’s
rather a special sort of stick.’
       Fenner wasn’t sharing in the general rejoicing.
Instead he was hunched worriedly over his instrument
console. ‘Doctor, come here!’
       The Doctor ambled across. ‘What is it, old chap?’
       ‘Something’s blocking the firing bay. The whole
section seems to be—buckled.’
       ‘Well, Kroll’s been smashing the place about a bit.
Bound to be some damage. Don’t worry about it,
Fenner. You don’t need a firing bay any more. No more
Kroll, no more protein source, no more orbit shots... no
more Refinery, come to that. It’s all over.’
      In a dull voice Fenner said, ‘The computer doesn’t
know that, Doctor.’
      Romana came over to join them. ‘You mean it’ll go
on running things by itself?’
      ‘That’s how it was designed. The next shot is due
in about fifty seconds. And it’s already started the
countdown.’
      The Doctor rubbed his chin. ‘I see. And if it tries to
launch a rocket with the firing bay blocked...’
      ‘The whole place will blow up,’ Fenner said
fatalistically.
      ‘Stop the computer,’ suggested Romana.
      ‘I’ve already tried. The manual override and abort
systems aren’t functioning any more.’
      The Doctor said guiltily, ‘I know. I disconnected
them in the firing bay.’
      ‘Can’t you reconnect them?’ asked Romana.
      ‘What? In fifty seconds.’
      ‘Forty seconds,’ said Fenner grimly.
      ‘Forty seconds? Right, there’s only one thing to
do!’ The Doctor ripped the top of the inspection hatch
and studied the maze of wires and circuitry within. ‘I’ll
have to reverse the polarity and fuse the entire
mechanism.’
      He ripped out first one power cable then another
and studied them thoughtfully. ‘Let’s hope these are the
right ones.’
      He touched the bared ends together. There was a
bang and a flash and most of the console exploded in a
shower of sparks.
      Fenner looked at the countdown clock. The
figures registered 02.01—and then stopped.
      The Doctor’s eyes were closed and he was standing
perfectly still as if turned to stone.
      ‘Doctor?’ said Romana worriedly. ‘Are you all
right?’
      The Doctor gave himself a tremendous shake, like
a dog coming out of the water. He opened his eyes.
‘Yes, I think so.’
      ‘You might have been killed.’
      ‘Yes,’ said the Doctor thoughtfully. ‘I suppose I
might! Time to say goodbye, I think Romana. Let’s go.’
      Fenner looked round the control room and shook
his head dazedly. ‘Well, it looks like the end of this
place.’
      ‘It is finished, then?’ asked Varlik.
      ‘That’s right,’ said Fenner sardonically. ‘You can
have Delta Three back now—and as far as I’m
concerned you’re welcome to it.’
      ‘Those of us who still live,’ said Varlik sombrely.
‘But we shall survive.’ He led his warriors away. The
Doctor sidled towards the door.
      ‘Where are you going?’ asked Fenner.
      ‘We must be on our way, too,’ said the Doctor
vaguely.
      ‘That’s right,’ said Romana briskly. ‘We’ve got a lot
to do, haven’t we, Doctor?’
      ‘We have indeed.’ The Doctor paused, taking a last
look round the control room, and at the bemused
Fenner. ‘You’d better send a message to Delta Magna.
They’ll send someone to pick you up—eventually!’
      ‘And what do I do till then?’
     ‘You’ll just have to lead a simple natural life for a
while. Try it—you might even like it. Have you got food
stores and medical supplies here?’
     ‘Well, yes, but—’
     ‘You could give Varlik and the other survivors
some help. I think they’ll need it. You could even teach
them that there are better things to do with their lives
than worship Kroll.’
     Fenner opened his mouth to make an outraged
protest—but the Doctor and Romana had gone.
     Grumbling to himself, Fenner composed an
urgent SOS message and sent it by sub-space radio to
Delta Magna. He dragged Thawn’s body into the store-
room and laid it beside Dugeen. He thought about the
Doctor’s suggestion. ‘Me! Some kind of Swampie
missionary! ‘ he grumbled. Then he began checking
through the supplies of food and medicine. It would be
something to do, till they came and took him home.
                       Epilogue

The Doctor moored his boat to a projecting tree root,
helped Romana out and stood looking around him.
‘This way, I think.’
     ‘No, Doctor,’ Romana pointed. ‘That way!’
     ‘Nonsense! I happen to have an unerring sense of
direction, Romana. You should know that by now.’
     The Doctor stepped determinedly forward and
sank into swamp mud up to his knees. Romana helped
him to pull free.
     ‘Er, this way, I think,’ said the Doctor and set off in
the direction she’d indicated. Romana smiled to herself
and followed him.
     They picked their way through the swamp,
heading for the knoll where they had left the TARDIS.
     As they walked along, Romana asked, ‘Doctor, how
did you know the fifth segment was a part of Kroll?’
     ‘Oh, well, it all seemed to add up,’ said the Doctor
vaguely. ‘For a start there was the Tracer reading—
wherever the segment was, we were right on top of it.
And we know who was lurking under the swamp when
we arrived, don’t we?’
     ‘Kroll?’
     ‘Kroll! Then there was the sacred book, the one we
found in the Temple. You remember it talked about the
symbol of Kroll’s power? It seemed pretty obvious that
was the segment.’
     ‘And the book said Kroll swallowed it!’
     ‘That’s right. Along with the High Priest,
presumably. Of course, Kroll wasn’t nearly so big
then—just your ordinary giant squid. It was the
segment that caused him to mutate, just go on growing
and growing. Trouble is, he got so big the lake couldn’t
feed him any more. He had to surface and start hunting
for food... Hello, look at this! ‘
       The Doctor stooped down and scooped something
out of the water. He held it out to Romana. It was a tiny
squid-like creature, wriggling furiously in his hand.
       ‘A baby Kroll,’ said the Doctor delightedly. ‘There
must be hundreds of these little creatures wriggling
about by now. Cellular regeneration you see. Taking
away the segment transformed one big Kroll into lots of
little ones.’
       ‘They won’t all grow up like Kroll will they?’ asked
Romana in alarm.
       ‘No, no, no, nothing like Kroll. These will be
ordinary giant squids. Nothing to worry about—unless
you’re a High Priest of course!’ He tossed the squid into
a pool with a plop. ‘No, there’ll never be another Kroll.
It was the segment that did it all...’
       Romana pointed to a flash of blue amidst the
reeds. ‘Look Doctor, the TARDIS!’
       The Doctor led the way to the police box and
opened the door. Immediately a delighted electronic
barking broke out. ‘Down K9, down!’ shouted the
Doctor. ‘It’s all right, we’re back—and we’ve found the
segment.’
       Romana followed him into the TARDIS, and the
door closed behind them.
       A few minutes later, there was a wheezing
groaning sound and the police box faded away.
       One adventure was over, another about to begin.
       The search for the sixth and last segment of the
Key to Time.
       It was to be the most astonishing quest of all...