It was a flight of only half an hour. During it, Alan told me about Polter. The hunchback, known now as Frank Rascor, owned a mine in the Laurentians, some thirty miles from Quebec City--a fabulously productive mine of gold. It was an anomaly that gold should be produced in this region. No vein of gold-bearing rock had been found, except the one on Polter's property. Alan had seen a newspaper account of the strangeness of it; and on a hunch had come to Quebec, being intrigued by the description of the mine owner. He had seen Frank Rascor on the Dufferin Terrace, and recognized him as Polter. Again my thoughts went back into the past. Had Polter stolen that missing fragment of golden quartz the size of a walnut which had been beneath Dr. Kent's microscope? We always thought so. Dr. Kent had some secret, some great problem upon which he was working. Polter, his assistant, had evidently known, or partially known, its details. And now, four years later, Polter was immensely rich, with a "gold mine" in mountains where there was no other evidence of gold! I seemed to see some connection. Alan, I knew, was groping with a dim idea, so strange he hardly dared voice it. "I tell you, it's weird, George. The sight of him. Polter--heavens, one couldn't mistake that build--and his face, his features, just the same as when we knew him." "Then what's so weird?" I demanded. "His age." There was a queer solemn hush in Alan's voice. "George, when we knew Polter, he was about twenty-five, wasn't he? Well, that was four years ago. But he isn't twenty-nine now. I swear it is the same man, but he isn't around thirty. Don't ask me what I'm talking about. I don't know. But he isn't thirty. He's nearer fifty! Unnatural! Weird! I felt it, and so did Babs, just that brief look we had of him." I didn't answer. My attention was on managing the plane. The lights of Levis were under us. Beyond the City cliffs, the St. Lawrence lay in its deep valley; the Quebec lights, the light-dotted ramparts with the Terrace and the great fortresslike Hotel showed across the river. "Better take the stick, Alan. I don't know where the field is. And don't you worry about Babs. She'll be back by now." * * * * * But she was not. We went to the two connecting rooms in the tower of the Hotel which Alan and Babs had engaged. We inquired with half a dozen phone calls. No one had seen or heard from her. The Quebec police were sending a man up to talk with Alan. "Well, we won't be here," Alan called to me. He was standing by the window in Babs' room; he was trembling too much to use the phone. I hung up the receiver and went though the connecting door to join him.