Without in any way pushing himself, without stinting his own repasts or curtailing his hours of indolence or of play, Blue Fox attended to his problem of supply so efficiently that in the course of a couple of weeks he had perhaps two score plump carcasses, lemmings and mice, laid out in this cold storage cellar of his. Then he filled it in right to the top with grass roots, turf, and other dry stuff that would not freeze into armor-plate, covered it over with light soil and bushes, and left it to await the hour of need.
In the course of the summer, Blue Fox, like all his fellows, established a number of these lemming caches, till by the time when the southward bird-flight proclaimed the summer at an end, the question of supply was one to give him no further anxiety. When the days were shrunken to an hour or two of sunlight, and the tundra was frozen to stone, and the winds drove the fine snow before them in blinding drifts, then Blue Fox dismissed his stores from his mind and devoted himself merrily to the hunting of his daily rations. The Arctic hares were still abundant, and not yet overwild from ceaseless harrying; and though the chase of these long-legged and nimble leapers was no facile affair, it was by no means too arduous for the tastes of an enterprising and active forager like Blue Fox.
In the meantime the household of Blue Fox, like all the other households in the little colony, had been substantially reduced in numbers. All the cubs, by this time grown nearly to full stature, if not to full wisdom, had migrated. There was neither room nor supply for them now in the home burrows, and they had not yet arrived at the sense of responsibility and forethought that would lead them to dig burrows for themselves. Gently enough, perhaps, but with a firmness which left no room for argument, the youngsters had all been turned out of doors. There seemed but one thing for them to do—to follow the southward migration of the game; and lightly they had done it. They had a hard winter before them, but with good hunting, and fair luck in dodging the traps and other perils that were bound to dog their inexperienced feet, they would return next spring, ripe with wisdom and experience, dig burrows of their own, and settle down to the responsibilities of Arctic family life.
To Blue Fox, sleeping warm in his dry burrow when he would, and secure in the knowledge of his deep-stored supplies, the gathering menace of the cold brought no terrors. By the time the sun had disappeared altogether, and the often brilliant but always terrible and mysterious Arctic night had settled firmly upon the barrens, game had grown so scarce and shy that even so shrewd a hunter as Blue Fox might often range a whole day without the luck to capture a ptarmigan or a hare. The hare, of course, like the ptarmigan, was at this season snowy-white; and Blue Fox would have had small fortune, indeed, in the chase had he himself remained in summer livery. With the setting in of the snow, he had quickly changed his coat to a like color; and therefore, with his wariness, his unerring nose, and his marvelous lightness of tread, he was sometimes able to surprise the swift hare asleep. In this fashion, too, he would often capture a ptarmigan, pouncing upon it just as the startled bird was spreading its wings for flight. When he failed in either venture—which was often enough the case—he felt himself in no way cast down. He had the excitement of the chase, the satisfaction of stretching his strong, lithe muscles in the race across the hard snow. And then, when the storm clouds were down close upon the levels, and all the world was black, and the great winds from the Pole, bitterer than death, raved southward with their sheeted ghosts of fine drift—then Blue Fox, with his furry mate beside him, lay blinking contentedly in the deep of his burrow, with food and to spare close at hand.
But happy as he was in the main, Blue Fox was not without his cares. Two enemies he had, so strong and cunning that the menace of them was never very far from his consciousness. The wolf, his master in strength, though not in craft, was always ready to hunt him with a bitter combination of hunger and of hate. And the wolverine, cunning beyond all the other kindreds of the wild, and of a sullen ferocity which few would dare to cross, was forever on the search for the stored supplies of the foxes.
The wolverine, solitary and morose, slow of movement, and defiant even toward the Polar storm, prowled in all weathers. One day chance led him upon one of Blue Fox's storage cellars. The snow had been recently pawed away, and the wolverine, quick to take the hint, began instantly to dig. It was astonishingly easy work. His short, powerful forepaws made the dry turf and light earth fly, and speedily he came to the store of frozen lemmings. But before he had quite glutted his great appetite, he was interrupted.
Though the storm was raging over the outer world, to Blue Fox in his burrow had come a monition of evil. He had whisked out to inspect his stores. He found the wolverine head downward in his choicest cellar.
Hot as was his rage, it did not burn up his discretion. This was a peril to be dealt with drastically. He knew that, if the robber was merely driven off, he would return and haunt the purlieus of the colony, and end by finding and rifling every storehouse in the neighborhood.
Blue Fox stole back and roused the occupants of the nearest burrows. In two minutes a dozen angry foxes were out and creeping through the storm. In vengeful silence they fell upon the thief as he feasted carelessly; and in spite of the savage fight he put up, they tore him literally to pieces.