and melting as the Arctic summer might be, it could never reach with its ardent fingers the foundations of eternal frost which underlay all that land at a depth of a very few feet. So Blue Fox dug his burrow not too deep, but rather on a gentle slant, and formed his chamber at a depth of not much more than two feet below the roots of the bushes. Abundantly lined with fine, dry grasses, which he and his family kept scrupulously clean, it was always warm and dry and sweet.
It was an afternoon in the first of the summer, one of those long, unclouded, glowing, warm afternoons of the Arctic, when the young shoots of herb and bush seem to lengthen visibly under the eye of the watcher, and the flower-buds open impetuously as if in haste for the caresses of the eager moths and flies. For the moment the vast expanses of the barren were not lonely. The nesting juncos and snow-buntings twittered cheerfully among the busy growths. The mating ducks clamored harshly along the bright coils of the sluggish stream which wound its way through the marshes. On an islet in the middle of a reedy mere, some half-mile to the east, a pair of great white trumpeter swans had their nest, scornful of concealment. A mile or more off to the west a herd of caribou browsed the young green shoots of the tundra growth, moving slowly northward. The windless air was faintly musical with the hum of insects and with the occasional squeaks and scurryings of unseen lemming mice in their secret roadways under the dense green sphagnum. Blue Fox sat up, not far from the entrance to his tunnel, blinking lazily in the glow and watching the play of his fuzzy cubs and their slim, young, blue-gray mother in and out their doorway. Scattered here and there over their naked little domain he saw the families of his kindred, similarly care-free and content with life.
But care-free as he was, Blue Fox never forgot that the price of freedom from care was eternal vigilance. Between his eyes and the pallid horizon he detected a wide-winged bird swinging low over the marshes. He knew at once what it was that with slow-moving, deliberate wings came up, nevertheless, so swiftly. It was no goose, or brant, or fish-loving merganser, or inland wandering saddleback gull that flew in such a fashion. He gave a shrill yelp of warning, answered at once from all over the colony; and at once the playing cubs whisked into their burrows or drew close to their mothers, and sat up to stare with bright, suspicious eyes at the strong-winged flier.
Blue Fox himself, like most of his full-grown fellows, never stirred. But his eyes never swerved for a second from the approach of that ominous, winnowing shape. It was a great Arctic hawk-owl, white mottled with chocolate; and it seemed to be hunting in a leisurely fashion, as if well fed and seeking excitement rather than a meal. It came straight on toward the colony of the foxes, flying lower and lower, till Blue Fox began to gather his steel-like muscles to be ready for a spring at its throat if it should come within reach. It passed straight over his head, its terrible hooked beak half open, its wide, implacable eyes, jewel-bright and hard as glass, glaring downward with still menace. But, with all its courage, it did not dare attack any one of the calmly watchful foxes. It made a sweeping half-circuit of the colony, and then sailed on toward the mere of the white swans. Just at the edge of the mere it dropped suddenly into a patch of reeds, to flap up again, a second later, with a limp form trailing from its talons – the form of a luckless mother-duck surprised in brooding her eggs. A great hubbub of startled and screaming water-fowl pursued the marauder; but the swans from their islet, as the foxes from their colony, looked on with silent indifference.
Blue Fox, basking in the sun, was by and by seized with a restlessness, a sense of some duty left undone. He was not hungry, for the wastes were just now so alive with nesting birds and swarming lemmings, and their fat little cousins, the lemming mice, that his hunting was a swift and easy matter. He did not even have to help his mate, occupied though she was, in a leisurely way, with the care of her cubs. But across his mind came an insistent memory of the long and bitter Arctic night, when the world would seem to snap under the deadly intensity of the cold, and there would be no birds but a few ptarmigan in the snow, and the fat lemmings would be safe beneath the frozen roofs of their tunnels, and his cleverest hunting would hardly serve him to keep the keen edge off his hunger. In the first sweet indolence of spring he had put far from him the remembrance of the famine season. But now it was borne in upon him that he must make provision against it. Shaking off his nonchalance, he got up, stretched himself elaborately, and trotted down briskly into the tundra.
He picked his way daintily over the wide beds of moist sphagnum, making no more sound as he went than if his feet had been of thistledown. At some distance from the skirts of the colony the moss was full of scurrying and squeaking noises. Presently he crouched and crept forward like a cat. The next instant he pounced with an indescribable speed and lightness, his head and forepaws disappearing into the moss. He had penetrated into one of the screened runways of the little people of the sphagnum. The next moment he lifted his head with a fat lemming dangling from either side of his fine jaws. He laid down the prize and inspected it with satisfaction – a round-bodied creature some six inches long, of a gray color mottled with rusty red, with a mere apology for a tail, and with the toes of its forepaws exaggeratedly developed, for use, perhaps, in constructing its mossy tunnels. For a few seconds Blue Fox pawed his prey playfully, as one of his cubs would have done. Then, bethinking himself of the serious business which he had in hand, he picked it up and trotted off to a dry spot which he knew of, just on the fringe of the island.
Now, of one thing Blue Fox was well aware, it having been borne in upon him by experience – viz., that a kill not soon eaten would speedily spoil in this weather. But he knew something else, which he could only have arrived at by the strictly rational process of putting two and two together – he understood the efficacy of cold storage.
Burrowing down through the light soil, he dug himself a little cellar, the floor of which was the stratum of perpetual frost. Here, in this preservative temperature, he deposited the body of the fat lemming, and covered the place from prying eyes with herbage and bush drawn lightly over it. Hunting easily and when the mood was upon him, he brought three more lemmings to the storehouse that same day. On the next day and the next an Arctic tempest swept over the plain, an icy rain drove level in whipping sheets, the low sky was crowded with hurrying ranks of torn black vapor, and the wise foxes kept to their holes. Then the sun came back to the waste places, and Blue Fox returned to his hunting.
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,
