I was around the desk before he could finish. I grabbed him much harder than I had grabbed Sammy. Something—probably the lining of his jacket—ripped. "You'd better explain that," I suggested.

"There's hardly anything to explain. Your wife tried to kill you by almost cutting through the pulley rope of your extension ladder, but you got off with a strained ankle. She tried to kill again by leaving the gas jets on one night in the kitchen. But you awoke in time. Your son tried to kill you this morning by draining the brake fluid from your car. There now. Does that bring us up to date?"

I was so shocked I let go of him. I sat down and lit another cigarette with what remained of the first. I watched him brush himself off and settle himself in the client chair.

"I can't blame you for behaving like that," he said.

"What the devil have you been doing, living in our attic and spying on me?"

"Dear me, no. But you see, I know. I know all about you, Mr. Foley. I have to know."

"You have to?"

"Now that you have avoided death the first three times, I'm going to hire you."

"To hire me? What for?"

I must have sounded so amazed that my visitor said: "You do hire yourself out as a private detective? Don't you? That is your function, isn't it?"