"Don't mention it," he said graciously. "It's been a pleasure. You must call me again any time you want a helping hand."

He got up restlessly, poured himself out a drink and sat down again.

"Don't you think you'd better tell me what it's all about?" he said abruptly. "I could live through an explanation of this cloakroom-ticket gag."

"Oh, that," she said. She trimmed the end of her cigarette. "Well, you see, they thought I'd got a cloakroom ticket they wanted, so they came to look for it. That's all."

"It isn't anything like all," he said bluntly. "Why go on holding out on me? You've got something they want — probably some papers that Kennet gave you. You parked them in a cloakroom somewhere, and these birds knew it and wanted the ticket. Or do you want me to believe that they went to all this trouble simply to get a receipt for Luker's hat?"

She frowned at her knees, and then she shrugged.

"I suppose there's no reason why you shouldn't know, since you've guessed already," she said. "As a matter of fact, I have got some papers. I thought Algy might like to know, so I just mentioned it to him casually on the telephone tonight."

"Meaning what I was talking to you about at the Berkeley."

"What was that?"

"Blackmail."