CHAPTER XIn which Drummond goes on board the S.Y. “Gadfly” But however chaotic Professor Goodman’s thoughts, they were like a placid pool compared to Drummond’s. He had first recovered consciousness as he lay on the floor in the room below, and with that instinctive caution which was second nature to him, he had remained motionless. Two men were talking, and the sound of his own name instinctively put him on his guard. At first he listened vaguely—his head was still aching infernally—while he tried to piece together in his mind what had happened. He remembered taking the receiver off the telephone in the deserted house; he remembered a stunning blow on the back of his head; and after that he remembered nothing more. And since he realised that he was now lying on the floor, it was obvious

