"How the heck should I know? I don't even know what happened." "True, true. I'd forgotten you're no telepath. I wonder if telepathy came in when high sex-identification began to wane. Umm, no--hardly possible. Eeb is obviously a throwback and she has both. Intriguing." The door opened and a woman entered the room. She was dressed in shorts and some sort of negligible halter. She walked across the room to the loudspeaker and Eddie, who had, armed with tape measure, once judged a local beauty contest, was sure she was the most beautiful woman he had ever seen. She said, "I'd better shut that thing off before Rajuz lulls you to sleep with all his scientific talk." She flicked a switch on the loudspeaker. "Of course he can still speak through telepathy but your mind won't get the impulses without that loudspeaker, Eddie. See? I can hear him now but you can't." Eddie had to take her word for it because he couldn't hear a thing. He hardly cared. Of paramount importance was this fact--here was _the_ voice. Not any voice but the one that had brought him here, wherever _here_ was. Eddie tried to be patient. "You're Eeb," he said. "That much I know. But where the hell are we?" "You mean, in space?" "Uh-huh." "We're exactly where your room was. We haven't moved an inch." "So where's my room? Where is it then?" "It isn't. It _was_. Fifty thousand years ago it was, Eddie. Not now. Now it's gone, with the building, with the city, with your whole civilization. We've left your time and entered mine." "Yeah," said Eddie. His voice sounded lame. "You don't believe me." "Nope, sorry--I don't." In truth Eddie was glad he hadn't married Judy but as for the rest of this, well--he was from Missouri. "It's simple. I'm a professor of history and my period of study was yours, the second millennium of the Christian Era." "Do you--ah--teach history in that outfit?" He pointed to the enticing lines of her halter and shorts. "Certainly. It's comfortable. Anyway we use no guesswork in history. We use a time-scanner. That, of course, makes history the most accurate of all the sciences. It's mental travel through time--not physical unless you will it. "Elementary stuff, Eddie. Just as they learned teleportation through space ten thousand years ago, so they learned you can do the same thing through time. Mental effort, applied properly, can move physical objects. It was always latent in human beings through some unknown ancestor--they just had to learn how to control the power." Eddie was still skeptical. "So you studied history by actually going back there?" "Something like that. Then I found you, Edam Hurst." "Ed Amhurst." "What's the difference? I found you and once I did, purely by chance, of course--that was the end of history. No more studying. They tell me I'm a throwback--less psi-quotient, more sex identification than anyone here. Maybe that explains it.