It was at that moment that I heard the faint buzz from the kitchen that meant the front door, and it was that buzz that started the ball rolling. Though at the time it appeared to be nothing interesting, just Durkin asking a favor.

Durkin was all right up to the neck. When I consider how thick he was in most respects I am surprised how he could tail. I know bull terriers are dumb, but good tailing means a lot more than just hanging on, and Fred Durkin was good. I asked him once how he did it, and he said, "I just go up to the subject and ask him where he's headed for, and then if I lose him I know where to look." I suppose he knew how funny that was; I don't know, I suspect him. When things got so Wolfe had to cut down expenses like everybody else from bankers to bums, Saul Panzer and I got our weekly envelopes sliced, but Durkin's was stopped altogether. Wolfe called him in when he was needed and paid him by the day, so I still saw him off and on and knew he was having hard sledding. Things had been slow and I hadn't run across him for a month or more when the buzzer sounded that day and Fritz brought him to the door of the office.

Wolfe looked up and nodded. "Hello, Fred. Do I owe you something?"

Durkin, approaching the desk with his hat in his hand, shook his head. "How are you, Mr. Wolfe. I wish to God you did. If there was anybody owed me anything I'd be with him like a saddle on a horse."

"Sit down. Will you sample some beer?"

"No, thanks." Fred stayed on his feet. "I've come to ask a favor."