It was well for his enemies that none of them were in the road of that human missile. They would have taken no further part in the ensuing battle. Joe's body crushed against the logs with a sound that was strange and horrible in the utter darkness; the pistol spun from his hand and rattled down'; then he fell with a crash to the floor. There was no further movement from him thereafter. His neck had been broken like a match. The odds were but two to one. Harold had taken out his own revolver now and was shooting blindly in the darkness. Ducking low, Bill leaped for him. In that leap there was none of the gentle mercy with which he had dealt with him first, so long ago in Harold's cabin. But a quick movement by Harold saved him from the full force of the leap; in a moment they were grappling in each other's arms. Bill wrenched him back and forth, and in an instant would have crushed the life out of him if it hadn't been for the interference of Pete. The latter breed leaped on his back, and Bill had to neglect Harold an instant to stretch up his arms and hurl Pete to the floor. Harold still clung to him, trying to seize his throat, but Bill wrenched him down. He flung his own body down on top of him, then seized him by the throat with the deadly intention of hammering his head on the floor; but before he could accomplish his purpose Pete was upon him again. It was the end of the preliminaries. In that second the fight began in earnest. They were both powerful men, the breed and Harold; and Bill was like a wild beast--quick as a cougar, resistless as a grizzly--a fighting fury that in the darkness was terrible as death. Mighty muscles, stinging blows, striking fists and grasping arms; the rage and glory of battle was upon him as never before. It was the death fight--in the darkness--and that meant it was a savage, nightmare thing that called forth those most deep and terrible instincts that in the first days of the earth were stored and implanted in the germ plasm. These were no longer men of the twentieth century. They were simply beasts, fighting to the death in a cave. It was a familiar thing to be warring thus in the darkness: Neither Harold nor Pete missed the light now. They were carried back to no less furious battles, fought in dark caverns under the sea; murder flamed in their hearts and fire ran riot in their blood.