It had been eleven years since Jerry had walked across the campus of Clifton University, heading for the ivy-choked main building. It was remarkable how little had changed, but the students seemed incredibly young. He was winded by the time he asked the pretty girl at the desk where Professor Martin Coltz could be located.

"Professor Coltz?" She stuck a pencil to her mouth. "Well, I guess he'd be in the Holland Laboratory about now."

"Holland Laboratory? What's that?"

"Oh, I guess that was after your time, wasn't it?"

Jerry felt decrepit, but managed to say: "It must be something new since I was here. Where is this place?"

He followed her directions, and located a fresh-painted building three hundred yards from the men's dorm. He met a student at the door, who told him that Professor Coltz would be found in the physics department.

The room was empty when Jerry entered, except for the single stooped figure vigorously erasing a blackboard. He turned when the door opened. If the students looked younger, Professor Coltz was far older than Jerry remembered. He was a tall man, with an unruly confusion of straight gray hair. He blinked when Jerry said:

"Hello, Professor. Do you remember me? Jerry Bridges?"

"Of course! I thought of you only yesterday, when I saw your name in the papers—"