"By my knowledge of myself, and also by my memory. I know what I was at thirty-five, and I know what I did; well, I simply know that I'm that man again, and that I shall go on and re-do more or less what he's already done. At some point in my life I must have got turned round, and now I'm living it backwards again. And put multiple personality quite out of your head. That's the whole point. I'm not anybody else, and I shan't be anybody else. At this moment I'm Derwent Rose, as he always was and always will be, but simply back at the mental and physical stage when he wrote _An Ape in Hell_." To-day, looking back, it gives me an indescribable ache at my heart to remember the sudden and immense sense of relief his words gave me. I breathed again, as if a window had been opened and a draught of cool fresh air let in. For if he only meant memory, then the thing wasn't so bad. The maniacal idea that had sent that cold shiver up my spine was capable of an ordinary explanation after all. For what else is memory but the illusion that one is living backwards again in this sense? How many ancient loves, hates, angers, can we not re-experience in any idle hour we choose to give over to reverie? Beyond a doubt Rose had in some way been abusing this mysterious faculty, and Surrey and the pine-woods was the place for him. "I see," I said at last. "I confess you frightened me for a moment. Anyway that's all right. You only have what we all have more or less. You merely bring greater powers than the rest of us to bear on an ordinary phenomenon. I don't want to talk about your work, but it always did seem to me that you went to rather appalling heights and fearsome depths for the stuff of it. Personally I don't think either heaven or hell is the safest place to go to for 'copy.' Too terrifying altogether." He seemed to consider this deeply. He was almost quiet again now. Again he cracked invisible nuts, and his heels and toes rose and fell gently and alternately on the carpet. "That's rather a new idea you've given me, George," he said at last. "I admit I hadn't thought of that. It might explain the beginning anyway--the turn-round. I suppose you mean I've been too close to the flames or the balm, and have got singed or the other thing, whatever you call it. I see. Yes.... It's probably nothing to do with the thyroid after all. I've been reading the wrong books. I never thought of the writings of the Saints. Or the Devils.... By the way, some of the Saints induced the stigmata on themselves by a sort of spiritual process, didn't they?" I frowned and moved uneasily in my chair. I wasn't anxious to hear Derwent Rose either on ecstasy or blasphemy. But he went on. "So that's useful as far as it goes. But--you'd hardly call _this_ spiritual, would you?"