A bookrack was crammed with large microcards; I slipped one into the viewer, with a queer sense of spying, and found myself listening apprehensively to hear that measured step and Jay Allison's falsetto voice demanding what the hell I was doing, meddling with his possessions. Eye to the viewer, I read briefly at random, something about the management of compound fracture, then realized I had understood exactly three words in a paragraph. I put my fist against my forehead and heard the words echoing there emptily; "laceration ... primary efflusion ... serum and lymph ... granulation tissue...." I presumed that the words meant something and that I once had known what. But if I had a medical education, I didn't recall a syllable of it. I didn't know a fracture from a fraction. In a sudden frenzy of impatience I stripped off the white coat and put on the first shirt I came to, a crimson thing that hung in the line of white coats like an exotic bird in snow country. I went back to rummaging the drawers and bureaus. Carelessly shoved in a pigeonhole I found another microcard that looked familiar; and when I slipped it mechanically into the viewer it turned out to be a book on mountaineering which, oddly enough, I remembered buying as a youngster. It dispelled my last, lingering doubts. Evidently I had bought it before the personalities had forked so sharply apart and separated, Jason from Jay. I was beginning to believe. Not to accept. Just to believe it had happened. The book looked well-thumbed, and had been handled so much I had to baby it into the slot of the viewer. Under a folded pile of clean underwear I found a flat half-empty bottle of whiskey. I remembered Forth's words that he'd never seen Jay Allison drink, and suddenly I thought, "The fool!" I fixed myself a drink and sat down, idly scanning over the mountaineering book. * * * * * Not till I'd entered medical school, I suspected, did the two halves of me fork so strongly apart ... so strongly that there had been days and weeks and, I suspected, years where Jay Allison had kept me prisoner. I tried to juggle dates in my mind, looked at a calendar, and got such a mental jolt that I put it face-down to think about when I was a little drunker. I wondered if my detailed memories of my teens and early twenties were the same memories Jay Allison looked back on. I didn't think so. People forget and remember selectively. Week by week, then, and year by year, the dominant personality of Jay had crowded me out; so that the young rowdy, more than half Darkovan, loving the mountains, half-homesick for a non-human world, had been drowned in the chilly, austere young medical student who lost himself in his work. But I, Jason--I had always been the watcher behind, the person Jay Allison dared not be? Why was he past thirty--and I just 22?