"Simple," Snader said. "I rode to next station. Then crossed over. Took other carrier back here."
"Brother, that's the best trick I've seen in years," Jeff said. "How did you do it? Can I do it, too?"
"I show you." Grinning like a wildcat, Snader linked his arms with Ann and Jeff, and walked them toward the screen. "Now," he said. "Step in."
Jeff submitted to Snader's pressure and stepped cautiously into the screen. Amazingly, he felt no resistance at all, no sense of change or motion. It was like stepping through a fog-bank into another room.
In fact, that was what they seemed to have done. They were in the chair-lined corridor. As Snader turned them around and seated them, they faced another moving picture screen. It seemed to rush through a dark tunnel toward a lighted square in the far distance.
The square grew on the screen. Soon they saw it was another room like the waiting room they had left, except that the number hanging from the ceiling was 702. They seemed to glide through it. Then they were in the dark tunnel again.
Ann was clutching Jeff's arm. He patted her hand. "Fun, hey? Like Alice through the looking-glass."
"You really think we're going back in time?" she whispered.
"Hardly! But we're seeing a million-dollar trick. I can't even begin to figure it out yet."