Stiffening, his curved eyeteeth baring themselves, his hackles bristling, Lad galloped back to the ravine-lip; and stood there sniffing the icy air and growling deep in his throat. Looking down to the ledge he saw Cyril was no longer its sole occupant. Crouched at the opening of a crevice, not ten feet from the unseeing child, was something bulky and sinister;--a mere menacing blur against the darker rock. Crawling home to its lair, supper-less and frantic with hunger, after a day of fruitless hunting through the dead forest world, a giant wildcat had been stirred from its first fitful slumber in the ledge's crevice by the impact of the child upon the heap of leaves. The human scent had startled the creature and it had slunk farther back into the crevice. The more so when the bark and inimical odor of a big dog were added to the shattering of the ravine's solitude. Then the dog had gone away. Curiosity,--the besetting trait of the cat tribe,--had mastered the crevice's dweller. The wildcat had wriggled noiselessly forward a little way, to learn what manner of enemy had invaded its lair. And, peering out, it had beheld a spindling child; a human atom, without strength or weapon. Fear changed to fury in the bob-cat's feline heart. Here was no opponent; but a mere item of prey. And, with fury, stirred long-unsatisfied hunger; the famine hunger of mid-winter which makes the folk of the wilderness risk capture or death by raiding guarded hencoops. Out from the crevice stole the wildcat. Its ears were flattened close to its evil head. Its yellow eyes were mere slits of fire. Its claws unsheathed themselves from the furry pads,--long, hooked claws, capable of disemboweling a grown deer at one sabre-stroke of the muscular hindlegs. Into the rubble and litter of the ledge the claws sank, and receded, in rhythmic motion. The compact yellow body tightened into a ball. The back quivered. The feet braced themselves. The cat was gauging its distance and making ready for a murder-spring. Cyril, his head turned the other way, was still peering up along the cliff-edge for sight of Lad. This was what Lad's scent and hearing,--and perhaps something else,--had warned him of, in that instant of the wind's eddying shift. And this was the scene he looked down upon, now, from the ravine-lip, five feet above. The collie brain,--though never the collie heart,--is wont to flash back, in moments of mortal stress, to the ancestral wolf. Never in his own life had Sunnybank Lad set eyes on a wildcat. But, in the primal forests, wolf and bob-cat had perforce met and clashed, a thousand times. There they had begun and had waged the eternal cat-and-dog feud, of the ages.