He couldn't find an answer. He turned the page, hoping for some more facts that might make some sense out of what he had been seeing, but there was nothing more. All the rest of the pages in the notebook were blank.

He looked up at the cop and the doctor with a bland, blank face. "Thanks a lot," he told Bill. "I thought I'd lost this book. I appreciate it."

"Oh, that's okay, Mr. Malone," Bill said. "Glad to do it."

"You don't know what this means to me," Malone said truthfully.

"No trouble at all," Bill said. "Any time." He gave Malone a big smile and turned back to the door. "But I got to get back to my beat," he said. "Listen, I'll see you. And if I can be any help—"

"Sure," Malone said. "I'll let you know. And thanks again."

"Welcome," Bill said, and opened the door. He strode out with the air of a man who has just been decorated with the Silver Star, the Purple Heart and the Congressional Medal of Honor.

Malone tried a few more steps and discovered that he could walk without falling down. He thanked the doctor again.

"Perfectly all right," the doctor said. "Nothing to it. Why, you ought to see some of the cases we get here. There was a guy here the other night with both his legs all mashed up by a—"

"I'll bet," Malone said hurriedly. "Well, I've got to be on my way. Just send the bill to FBI headquarters on 69th Street." He closed the door on the doctor's enthusiastic "Yes, sir!" and went on down the hallway and out into the street. At Seventh Avenue and Greenwich Avenue he flagged a cab.