"Right! A model airplane done in clay. From the description we had over the telephone, it followed your specifications which we have just given to the Bureau of Aeronautics, exactly, to the letter." "A hoax!" I said. "A gag!" "There was a date on the stone hangar," said Doctor A. "The date was Seven-Ninety-Two, A.D.!" "That could be a gag, too," I insisted, though by now I didn't believe it myself. "It could have been put there by pranksters at any time." Doctor A gave me a keen glance and then shook his head. "The crypt of Saint Dennis has been lost to the world for centuries," he said softly. "That's a proved fact. Even if the prank as you call it, was brought about, that metal bird of yours was tucked away in the crypt before fifteen hundred A.D. at which time, if records serve, the world did not use the airplane, especially the jet plane." "Then," I said, feeling the awe my voice must have expressed, "I, whom you call Dean Hale, and Father Wulstan, are one and the same person. If true, reincarnation is a fact. What does that mean, after twelve hundred years?" "The answer to that question is the answer to why The Lab was first established, Hale. You wished to remember. You are remembering." "I'm remembering a lot I didn't bargain for," I said. "Dean Hale is Father Wulstan, or was, and Father Wulstan is now Dean Hale. Now, if you'll just tell me who Dean Hale is, I'll be satisfied!" "Dean Hale," said Doctor A, "whoever he may turn out to be, is the total of all his past. If reincarnation is true, he has lived countless lives, many useless, many evil, many good. Thus have all men lived, if reincarnation is true. If it is, and we prove it, we as scientists are interested only in your past scientific lives." "You mean you want me to go through more Father Wulstan stuff?" I demanded. "You've already remembered Father Wulstan," said Doctor A, "and we are interested only in your past lives which contributed to human progress. There'll be many lives that will remain closed books to you, and to us." "How many do I re-live?" I asked groaning. "Or even the good ones, if any there were, how many must I re-live?" "Who knows?" asked Doctor A. "How many profitable