"But," I objected, thinking of something I had read in the clipping he had showed me, "you're not going back to your own era. You cannot. If you returned, you would put your project into execution, and history does not record that activity." I saw from the sudden narrowing of his abnormally long eyes that I had caught his interest, and I pressed my advantage hastily. "Remember that all the history of your time is written, Harbauer. It is in the books of Earth's history, with which every child of this age, into which you have thrust yourself, is familiar. And those histories do not record the domination of the world by yourself. So--you are confronted by an impossibility!" * * * * * My reasoning, now, sounds specious, and yet it was a line of thought which could not be waved aside. I saw Harbauer's black brows knit together, and mounting anger darken his face. I do not know, but I believe I was never nearer death than I was at that instant. "Fool!" he cried. "Idiot! Imbecile! Do you think you can confuse me, turn me from my purpose, with words? Do you? Do you believe me to be a child, or a weakling? I tell you, I have planned this thing to the last detail. If I had not found what I sought on this first trip, I would have taken another, a dozen, a score, until I found the information I sought. The last six years of my life I have worked day and night to this end; your histories and your words--" My plan had worked. The man was beside himself with insane anger. And in his rage he forgot, for an instant, that he was my captor. Taking a desperate chance, I launched myself at his legs. His weapon roared over my head, just as I struck. I felt the hot gas from the thing beat against my neck; I caught the reeking scent of the smoke. Then we were both on the floor, and locked in a mad embrace. Harbauer was a smaller man than myself, but he had the amazing strength of a Zenian. He fought viciously, using every ounce of his strength against me, striving to bring his weapon into use, hammering my head upon the floor, racking my body mercilessly, grunting, cursing, mumbling constantly as he did so. But I was in better trim than Harbauer. I have never seen a laboratory man who could stand the strain of prolonged physical exertion. Bending over test-tubes and meters is no life for a man. At grips with him, I was in my own element, and he was out of his. I let him wear himself out, exerting myself as little as possible, confining my efforts to keeping his weapon where he could not use it. I felt him weakening at last. His breath was coming in great sobs, and his long eyes started from their sockets with the strained effort he was putting forth. And then, with a single mighty effort, I knocked the pistol from his hand, so that it slid across the floor and brought up with a crash against a wall of the room. "Now!" I said, and turned on him. * * * * *