"Don't you," I asked, "think it IS quite possible that your brain invented all those memories of what—what happened before that accident?"

He drew a sharp sigh.

"You make me feel very guilty."

"That's exactly what I tried to make you NOT feel!"

"I know, yes. That's why I feel so guilty."

We had paused in our walk. He stood nervously prodding the hard wet sand with his walking-stick.

"In a way," he said, "your theory was quite right. But—it didn't go far enough. It's not only possible, it's a fact, that I didn't see those signs in those hands. I never examined those hands. They weren't there. I wasn't there. I haven't an uncle in Hampshire, even. I never had."

I, too, prodded the sand.

"Well," I said at length, "I do feel rather a fool."

"I've no right even to beg your pardon, but—''