She would keep on. She cared not what lay ahead, only that at each step she was putting a greater distance between herself and the faithless Nu, the hateful Gron. That was all that counted—to get away where none might ever find her—to court death—to welcome the end that one need never seek for long in that savage, primeval world.

She had crossed half the clearing, perhaps, when the head of a bull aurochs appeared topping the crest of the gulf ahead. The brute paused to look at the woman. He lowered his head and bellowed. Directly behind him appeared another and another. Ordinarily the aurochs was a harmless beast, fighting only when forced to it in self-defense; but an occasional bull there was that developed bellicose tendencies that made discretion upon the side of an unarmed human the better part of valor. Nat-ul paused, measuring the distance between herself and the bull and herself and the nearest tree.

While Nat-ul, torn by anguish, fled the cliff that sheltered Nu, the man, within the cave with Gron, again disengaged the fingers of the woman from about his neck.

"Cease thy love-making, Gron," he said. "There may be no love between us. In the tribe of Nu, my father, a man takes but one mate. I would take Nat-ul, the daughter of Tha. You are already mated to Tur. You have told me this, and I have seen his child suckling your breast. I love only Nat-ul—you should love only Tur."

The woman interrupted him with an angry stamp of her sandaled foot.

"I hate him," she cried. "I hate him. I love only Nu, the son of Nu."

The man shook his head, and when he spoke it was still in a kindly voice, for he felt only sorrow for the unhappy woman.

"It is useless, Gron," he said, "for us to speak further upon this matter. Together we must remain until we have come back to our own countries. But there must be no love, nor more words of love between us. Do you understand?"

The woman looked at him for a moment. What the emotion was that stirred her heart her face did not betray. It might have been the anger of a woman scorned, or the sorrow of a breaking heart. She took a step toward him, paused, and then throwing her arms before her face turned and sank to the floor of the cave, sobbing.

Nu turned away and stepped out upon the ledge before the cave. His quick eyes scanned the panorama spread out before him in a single glance. They stopped instantly upon a tiny figure showing across the forest in the little plain that ran to the edge of the plateau before it dove into the valley beside the inland sea. It was the figure of a woman. She was running swiftly toward the declivity. Nu puckered his brows. There was something familiar about the graceful swing of the tiny figure, the twinkling of the little feet as they raced across the grassy plain. Who could it be? What member of his tribe could have come to this distant island? It was but an accidental similarity, of course; but yet how wildly his heart beat at the sight of the distant figure! Could it be? By any remote possibility could Nat-ul have reached this strange country?