The two crouching upon the precipice watched his every movement. They had rolled to the edge of the declivity a rock as huge as they could control, and now together held it poised over the pathway. Wolf came hurrying along, his head bent down like that of a hound on the scent of game. He reached a spot just beneath the two, and then with a sudden united effort they shoved over the rock. It thundered down upon the unfortunate Wolf with an accuracy which spoke well for the eyes and hands of the lovers. The man was crushed horribly. The two above scrambled down, laughing, and Yellow Hair took from the dead Wolf a necklace of claws and fastened it proudly upon his own person. "Now we will go to my cave," said he. "No," said Red Lips; "my father will look for Wolf to-morrow, and will find him. Then he will come and kill us. We must go and kill him to-night." "Yes," said Yellow Hair. Hand in hand the two started for the cave of Fangs. The side hill in which it was situated was very steep, and the lovers thought they could duplicate the affair with Wolf. "We must cripple him, anyway," said Yellow Hair, "for I am not strong enough to fight him alone. His club is heavy." They reached the vicinity of the cave and crept above it. Having, with great difficulty, secured a rock in position to be rolled down, they waited for Fangs to appear. He came out about dusk, and stretched out his arms lazily, when the two above released the rock. It rolled down swiftly and with great force, but there was no such sheer drop afforded as when Wolf was killed, and Fangs heard the stone coming and almost eluded it. It caught one of his legs, as he tried to leap aside, and broke it. Fangs fell to the ground. With a yell of triumph Yellow Hair bounded to where the crippled man lay and began pounding him upon the head with his club. Fangs had a very thick head. He struggled vigorously, and succeeded in catching Yellow Hair by the wrist. Then he drew the younger man to him and began to throttle him. The case of Yellow Hair was desperate. Fangs's great strength was too much for him. His stifled yells told of his agony.