occurred to me that medical and surgical science is often hampered because it can't work with human beings, though how this occurs to me I don't know. Assembling missing persons, orphans, people in whom nobody has the slightest interest, whose eternal disappearance would cause no questioning, would be a boon to such scientists, and a source of revenue to whoever provided them with human guinea pigs." "For an amnesiac," he said, "your thinking is to the point." "But I'd just as soon be dead and buried as to know nothing of myself," I went on. "I find I don't care overly much. But do you believe that I may somehow be shocked out of amnesia? Don't forget, a lot of heavy hands have been laid on me in the last few days—if what you've just told me is true—and the hands haven't shocked me into remembering." "There are shocks, and shocks," he said. "Ever hear of the atom bomb? Know anything about electrons? Ever hear of a cyclotron? Part of the work of my friends is in the field of nuclear fission, which means less to me than it does to you; though just between us, if you aren't a surgeon—from your fingers—I never saw one. Besides, the gent who cut up Marian Slade knew his surgery." That gave me a little chill. Was I a surgeon? Had I slain some woman named Marian Slade? Was I innately capable of cutting a human body to bits and pushing the pieces into the sewer? I didn't know! "If I did anything like that, Rober," I said, "then if your friends cut me into little pieces, I have merely paid off for Marian Slade." "And escaped the electric chair!" said Rober drily. "Also, your memory is better than it was: you remember my name, and I told it to you once, when I came in. Well, you're going to be released in my custody in an hour or so. If you care to trust me, we'll visit The Lab." The Lab! That's all it was ever called, if memory serves me, and memory does serve me now. The Lab! Nobody, once having experienced a little segment of it, could possibly ever again have forgotten it. It wasn't much to look at, from the outside; just a squatty, large, square building of gray granite, in the midst of a clearing in Westchester's wooded area. It was wired like a prison, and there were signs warning people away. There were also people standing guard. The Lab was either a prison or a sanitarium—but not once while I was there did I see anybody in the place who could conceivably have been a convict or a patient. I saw only the