His mate warned him irritably away, and he curled up and slept in the entrance. When morning came and a dim light pervaded the lair, he again sought after the source of the remotely familiar sounds. There was a new note in his mate’s warning snarl. It was a jealous note, and he was very careful in keeping a respectful distance. Nevertheless, he made out, sheltering between her legs against the length of her body, five strange little bundles of life, very feeble, very helpless, making tiny whimpering noises, with eyes that did not open to the light. He was surprised. It was not the first time in his long and successful life that this thing had happened. It had happened many times, yet each time it was as fresh a surprise as ever to him. His mate looked at him anxiously. Every little while she emitted a low growl, and at times, when it seemed to her he approached too near, the growl shot up in her throat to a sharp snarl. Of her own experience she had no memory of the thing happening; but in her instinct, which was the experience of all the mothers of wolves, there lurked a memory of fathers that had eaten their new-born and helpless progeny. It manifested itself as a fear strong within her, that made her prevent One Eye from more closely inspecting the cubs he had fathered. But there was no danger. Old One Eye was feeling the urge of an impulse, that was, in turn, an instinct that had come down to him from all the fathers of wolves. He did not question it, nor puzzle over it. It was there, in the fibre of his being; and it was the most natural thing in the world that he should obey it by turning his back on his new-born family and by trotting out and away on the meat-trail whereby he lived. Five or six miles from the lair, the stream divided, its forks going off among the mountains at a right angle. Here, leading up the left fork, he came upon a fresh track. He smelled it and found it so recent that he crouched swiftly, and looked in the direction in which it disappeared. Then he turned deliberately and took the right fork. The footprint was much larger than the one his own feet made, and he knew that in the wake of such a trail there was little meat for him. Half a mile up the right fork, his quick ears caught the sound of gnawing teeth. He stalked the quarry and found it to be a porcupine, standing upright against a tree and trying his teeth on the bark. One Eye approached carefully but hopelessly. He knew the breed, though he had never met it so far north before; and never in his long life had porcupine served him for a meal. But he had long since learned that there was such a thing as Chance, or Opportunity, and he continued to draw near. There was never any telling what might happen, for with live things events were somehow always happening differently.