Emmanuel said, "But what is Valis?"

"An artificial satellite that projects a hologram that they take to be reality."

"Then it's a reality generator."

"Yes," Elias said.

"Is the reality genuine?"

"No; I said it's a hologram. It can make them see whatever it wants them to see. That's the whole point of the film. It's a study of the power of illusion."

Going to his room, Emmanuel picked up the slate that Zina had given him and pressed the tab.

"What are you doing?" Elias said, coming in behind him.

The slate showed one word:

NO

"That's plugged into the government, Elias said. "There's no point in using it. I knew Plaudet would give you one of those." He reached for it. "Give it to me."

"I want to keep it," Emmanuel said.

"Good grief; it says I.B.M. right on it! What do you expect it to tell you? The truth? When has the government ever told any- one the truth? They killed your mother and put your father into cryonic suspension. Let me have it, damn it."

"If this is taken from me," Emmanuel said, "they will give me another."

"I suppose so." Elias withdrew his hand. "But don't believe what it says."

"It says you're wrong about Valis," Emmanuel said.

"In what way?"

Emmanuel said, "It just said 'no.' It didn't say anything more." He pressed the tab again.

YOU

"What the hell does that mean?" Elias said, mystified.

"I don't know," Emmanuel said truthfully. He thought, I will keep using it.

And then he thought, It is tricking me. It dances along the path like a bobbing light, leading me and leading me, away, fur- ther, further, into the darkness. And then when the darkness is everywhere the bobbing light will wink out. I know you, he thought at the slate. I know how you work. I will not follow; you must come to me.