"Sit down," the latter said tersely. "Sit down, or, as sure as I am a living man, I'll fire. I could say that I fired the shot in self-defence, and when the whole story comes to be told I have no fear that a jury would disbelieve me. Besides, there is nothing to be afraid of. Those sounds don't come from the police trying to force their way into the house. On the contrary, it seems to me that some of your parasites are having a misunderstanding over their cards. At any rate, you are not to move. If you do, there will be an end once and for all of the millionaire Mark Fenwick. Sit down, my child--you are trembling from head to foot." "It was his voice," the girl cried. "I am certain that it was Charles who called out just now." Once more the shouts and cries broke out, once more came that banging on the panels, followed by a splitting crash, after which the uproar doubled. Evidently a door had given way and the conflict was being fought out on the stairs. "Shall we go and take a hand?" Gurdon whispered excitedly. "Murder might be going on here." "I think we had better risk it a little longer," was Venner's cautious reply. "After all is said and done, we must not make ourselves too prominent. If necessary we will take a hand, but, unless I am greatly mistaken, the prisoner upstairs has got the better of his captors. Ah, I thought so." The sound of strife overhead suddenly ceased after two smashing blows, in which evidently a man's clenched fist had come in contact with naked flesh. There was a groan, the thud of a falling body, and the man in the list slippers came rolling down the stairs. He was followed a moment later by a young clean-shaven man dressed in a grey Norfolk suit. His frame suggested power and strength, though his face was white like that of one who is just recovering from a long illness. He was breathing very hard, but otherwise he did not appear to have suffered much in the struggle out of which he had emerged in so victorious a fashion. He made his way direct to the drawing-room, and immediately a woman's voice uprose in a long wailing cry. "I'd give something to see that," Venner whispered. "Only I am afraid we can't do anything until the man in the list slippers comes to his senses and takes himself off. There is another one coming now. He doesn't look much better off than his colleague." Another man crept down the stairs, swaying as he came and holding on to the balusters. He had a tremendous swelling over his left eye and a terrible gash in his lip, from which the blood was flowing freely. Altogether he presented a terrible aspect as he bent over the prostrate form of his unconscious companion. "Here, get up, wake up," he said. "What are you lying there for? He'll be out of the house before we can turn round, and what will the governor say then?"