Dr. Porter propped an elbow on his pillow, trying to orient himself in the fuzziness that follows a midnight awakening. He stifled a gasp, and sat up suddenly, as he saw that the man silhouetted against the living room lamp had pajama-clad Dickie by the arm. The child was rubbing his eyes, but there wasn't a whimper out of him.

"I got a gun on the kid," the man said. "I like kids and I won't hurt him if you do what I say."

The doctor struggled to keep his voice soothing and professional. "Of course you wouldn't," he said. "You don't want to go back to the hospital."

The man laughed. "I ain't one of your nuts, Doc. And I don't want your money. I got plenty. All I want from you is a little trip in your time machine."

"Metachronoscope," corrected the doctor. "It's very misleading to call it a time-travel machine."


Letting go of the boy, Slick dealt Dr. Porter a vicious slap. "That'll learn you not to pull none of your high-brow stuff. Is it my fault I had to quit school to keep the family from starvin' when my old man got sent up? If Slick Tennant says it's a time-travel machine, that's what you call it, see?"

"Yes, I see," Dr. Porter said faintly. The mention of gangland's most dreaded name had more effect on him than the blow.

"Now let's get something else straight. Once, on TV, they said a couple of guys came back. Another time, the news program said they couldn't come back and give tips on the ponies. Which is right? Can you bring me back any time you want to?"

"Absolutely not. The decision is irrevocable. The public's impression that the future can be altered or predicted is incorrect."