evening he had been here to take away his winnings. The steps must be intended to give access to the roof, where there was probably a tank to feed the bath, and what more secret place to drown a man than there? And what easier place, so long as the man was well drugged, and there was a strong lid to the tank? As I say, Naylor, your notion was meritorious, but your execution was wretched—perhaps because you had no notion that I was watching you."
He paused, and then went on. "Come," he said, "collect your scattered faculties, both of you. I shan't hand you over to the police for this little invention of yours; it's too useful an invention to give away to the police. I shan't hand you over, that is to say, as long as you do as I tell you. If you get mutinous, you shall hang, both of you, for the Lawrence business. I may as well tell you that I'm a bit of a scoundrel myself, by way of profession. I don't boast about it, but it's well to be frank in making arrangements of this sort. I'm going to take you into my service. I employ a few agents, and you and your tank may come in very handy from time to time. But we must
