The hound's teeth found nothing as they came together, missing the fending left arm as the man thrust it forward, and coming together viciously as the brute fell back for an instant and leaped again. This time the arm was siezed fiercely as the man's right hand grasped firmly the dog's throat. There was a momentary wrenching and swaying, the dog's hold on the arm was lost and, at the same instant, almost, the hand of the arm released was aiding its fellow in the throat grip, when the fierce wrestle became more even. The dog writhed and twisted madly while the man stood, pale but firm, his legs braced against the seats as he sought a mastery of the folding skin and to bring his hands together until they should find the windpipe and afford a chance of throttling his powerful adversary. The feat was not an easy one, for there were great size and the strength of savage rage to overcome. Growling hoarsely, foaming at the mouth, whining hungrily in its blood-thirst, the brute surged forward again and again, and wrenched and swayed in the effort to free himself from that merciless, seeking hold. So they swung and tottered for a moment, and then, at last, the man found the deadly grip he had been feeling for; he had the windpipe of the beast! Now came another aspect to the struggle. The hound, in peril now, no longer aggressive, for the moment, was fighting for his life. His strength was going. With a mighty effort, Stafford swung him about and backward against the seat, gasping and gurgling. With the utmost strength of his hands the man squeezed and bore forward, at the same time, with all the weight and impulse of his body. The dog twisted in frightful paroxysms, the red tongue protruded and the eyes stared blindly, but there was too much vitality in the animal for a sudden end of all. Still the man surged forward with all his might, bearing so closely that the hot slaver of the beast was on his cheek and in his hair. The straining lasted for a little time, and then at last came what was certain; there was a sudden yielding, a great final gasp, the big body relaxed and straightened out and the fight was over. Stafford rose weakly upright, assisted by the men who had vainly sought opportunity to assist him in the sudden fight and turned toward the woman who lay faint and white, against the window ledge, with face upturned and eyes unseeing. They carried her gently to her stateroom. [Illustration: "THE BIG BODY RELAXED AND STRAIGHTENED OUT"]