Uglik struck at the attacker. The Neanderthaler turned toward him, but as he did so, Anak hurled his spear. At close range, the stone-tipped weapon passed nearly through the apeman. He stopped his rush and began to cough up blood from a pierced lung. Anak seized Invar's spear and sprang to the attack. An unfledged youth who craved distinction, rushed ahead of the Chief Hunter, but his act spelled his doom. One blow of the huge smiting-stone laid him dead. Anak hurled Invar's spear and again his weapon found its mark. The Neanderthaler roared with pain and sank gradually to his knees. Uglik dashed in, knife in hand. He threw himself on the prostrate monster and stabbed him again and again. The blows struck home, but with a last effort the apeman threw off his assailant and struck at him with the huge stone which had already robbed the tribe of two of its members. Before the blow could fall, Samo, one of the hunters, threw himself in the way and took the blow on his arm. The arm bone snapped like a pipestem, but it was the monster's dying effort. With a shudder, he fell back dead. * * * * * A ferocious howl rent the air. With a smiting-stone in each hand, the female charged down at them. She was somewhat smaller than the male, but still a match for any two of the men. Uglik's face paled as he wrenched Invar's spear from the dead male and turned to face her. The howl was repeated from farther up the ravine. Two more males were approaching at a lumbering run, smiting-stones in either hand. Uglik was a brave man, but he was also a cautious leader. He did not care to expose his tribe to almost certain annihilation and he led a wild retreat down the valley, Samo, with his arm hanging limp, bringing up the rear. The Neanderthalers did not follow into the open valley. Again at the camping place, Uglik called his hunters into council. The situation was grave enough. With the Neanderthalers so near them, it meant eventual annihilation to stay where they were, yet there was no place they could go. They had been driven from their old home by hordes of men who came up from the south. They had fought to retain their ancestral hunting grounds where they had dwelt since the beginning of time, but a series of defeats at the hands of overwhelming numbers had dwindled down the tribe until a migration was necessary. They had followed the migrating game toward the unknown north. Several times they had tried to stop, but each time they had found the land in possession of other and stronger tribes. Their men had been killed and their women stolen until they again took up their march to the north. From the hundred that had formerly called Uglik "Father," there now remained only a score of women and children, a half dozen youths, and five able-bodied hunters, besides Uglik. South, they dared not go. North, there lay unknown horrors. West lay the raging sea. East, the Neanderthalers blocked the way.