The porcupine rolled itself into a ball, radiating long, sharp needles in all directions that defied attack. In his youth One Eye had once sniffed too near a similar, apparently inert ball of quills, and had the tail flick out suddenly in his face. One quill he had carried away in his muzzle, where it had remained for weeks, a rankling flame, until it finally worked out. So he lay down, in a comfortable crouching position, his nose fully a foot away, and out of the line of the tail. Thus he waited, keeping perfectly quiet. There was no telling. Something might happen. The porcupine might unroll. There might be opportunity for a deft and ripping thrust of paw into the tender, unguarded belly. But at the end of half an hour he arose, growled wrathfully at the motionless ball, and trotted on. He had waited too often and futilely in the past for porcupines to unroll, to waste any more time. He continued up the right fork. The day wore along, and nothing rewarded his hunt. The urge of his awakened instinct of fatherhood was strong upon him. He must find meat. In the afternoon he blundered upon a ptarmigan. He came out of a thicket and found himself face to face with the slow-witted bird. It was sitting on a log, not a foot beyond the end of his nose. Each saw the other. The bird made a startled rise, but he struck it with his paw, and smashed it down to earth, then pounced upon it, and caught it in his teeth as it scuttled across the snow trying to rise in the air again. As his teeth crunched through the tender flesh and fragile bones, he began naturally to eat. Then he remembered, and, turning on the back-track, started for home, carrying the ptarmigan in his mouth. A mile above the forks, running velvet-footed as was his custom, a gliding shadow that cautiously prospected each new vista of the trail, he came upon later imprints of the large tracks he had discovered in the early morning. As the track led his way, he followed, prepared to meet the maker of it at every turn of the stream. He slid his head around a corner of rock, where began an unusually large bend in the stream, and his quick eyes made out something that sent him crouching swiftly down. It was the maker of the track, a large female lynx. She was crouching as he had crouched once that day, in front of her the tight-rolled ball of quills. If he had been a gliding shadow before, he now became the ghost of such a shadow, as he crept and circled around, and came up well to leeward of the silent, motionless pair.