Can you hear me thinking? he wondered. Easy avenue to paranoia; sitting here alone he felt them tuning in on him, monitoring, recording, discussing… he shivered, rose to his feet, walked aimlessly, his hands deep in his pockets. No matter where I go, he realized. You’ll always be with me. As long as I have this device inside my head.

I’ll make a deal with you, he thought to himself—and to them. Can’t you imprint a false-memory template on me again, as you did before, that I lived an average, routine life, never went to Mars? Never saw an Interplan uniform up close and never handled a gun?

A voice inside his brain answered, “As has been carefully explained to you: that would not be enough.”

Astonished, he halted.

“We formerly communicated with you in this manner,” the voice continued. “When you were operating in the field, on Mars. It’s been months since we’ve done it; we assumed, in fact, that we’d never have to do so again. Where are you?”

“Walking,” Quail said, “to my death.” By your officers’ guns, he added as an afterthought. “How can you be sure it wouldn’t be enough?” he demanded. “Don’t the Rekal techniques work?”

“As we said. If you’re given a set of standard, average memories you get—restless. You’d inevitably seek out Rekal or one of its competitors again. We can’t go through this a second time.”

“Suppose,” Quail said, “once my authentic memories have been cancelled, something more vital than standard memories are implanted. Something which would act to satisfy my craving,” he said. “That’s been proved; that’s probably why you initially hired me. But you ought to be able to come up with something else—something equal. I was the richest man on Terra but I finally gave all my money to educational foundations. Or I was a famous deep-space explorer. Anything of that sort; wouldn’t one of those do?”