"The beast," he growled; "shootin's too damned good for him. Get out of the way, Barney, I'm going to give him all six chambers." "No," said Barney quietly. "Why?" demanded Curtiss, trying to push past Custer. "Because I don't believe that he harmed Victoria," replied Barney. "That's sufficient reason for waiting until we know the truth. Then I won't stand for the killing of an unconscious man anyway." "He's nothing but a beast—a mad dog," insisted Curtiss. "He should be killed for what he is. I'd never have thought to see you defending the man who killed your sister—God alone knows what worse crime he committed before he killed her." "Don't be a fool, Curtiss," snapped Barney. "We don't even know that Victoria's dead. The chances are that this man has been helpless from fever for a long time. There's a wound in his head that was probably made by your shot last night. If he recovers from that he may be able to throw some light on Victoria's disappearance. If it develops that he has harmed her I'm the one to demand an accounting—not you; but as I said before I do not believe that this man would have harmed a hair of my sister's head." "What do you know about him?" demanded Curtiss. "I never saw him before," replied Barney. "I don't know who he is or where he came from; but I know—well, never mind what I know, except that there isn't anybody going to kill him, other than Barney Custer." "Custer's right," broke in Brown. "It would be murder to kill this fellow in cold blood. You have jumped to the conclusion, Curtiss, that Miss Custer is dead. If we let you kill this man we might be destroying our best chance to locate and rescue her." As they talked the gaunt figure of the wolfhound, Terkoz, crept into the cave. He had not been killed by the Arab's blow, and a liberal dose of cold water poured over his head had helped to hasten returning consciousness. He nosed, whining, about the cavern as though in search of Victoria. The men watched him in silence after Brown had said: "If this man harmed Miss Custer and laid out Terkoz the beast'll be keen for revenge. Watch him, and if Curtiss is right there won't any of us have to avenge your sister—Terkoz'll take care of that. I know him." "We'll leave it to Terkoz," said Barney confidently. After the animal had made the