"Hey, what about that?" I said. "After I left here, I got to wondering how, if what you just said is true, you people were able to manipulate the Brain to select me."

"The Brain of which you speak works on a principle of force-fields, generated by induction coils. We simply placed the right counterforces in the right places. No actual contact was necessary."

"Well, damn it," I said, after a glance back at Baxter and Clatclit, who were staring bewilderedly toward the source of the voice, "can't you just keep him here? He's bound to perish from lack of food, or water, or—"

"Jery Delvin, the metabolic stasis which I have already mentioned to you is not something we used specially for these boys. It is a necessary contingent of our world. Where there is absolute Location, there is absolutely no change of the sort you mentioned."

I gave up. "All right, all right. I won't argue the point. If you could get at him, I guess you would. Not a chance of dropping him down a hole, or something, though?"

"By the very nature of our world, hazardous localizing is an impossibility. Our universe possesses a self-regulatory locale-control that obviates the contingency of perilous placement of an individual."

"Their universe has what?" Snow asked me, her blue-violet eyes wide.

"A built-in safety feature," I muttered. "It figures, now that I think of it. If Location is absolute, it is One. That means that it's either all-safe, or all-dangerous. It can't have a bit of one thing and a bit another. Which means that I'm still carrying the ball."

"Correction," said Baxter, behind me, "you have fumbled."

I looked back at him. He had the collapser in his hand yet, despite our space-warping materialization in the cavern. And the muzzle was pointed right at Snow's breast, at the Amnesty.