Ever since he had heard that wailing call from the swamp woods, he had known that there were rival hunters, the keenest of all still hunters among the rabbits. Every day he came upon the trail of their ravages, rifled snares, dead squirrels, torn feathers, even the remains of a fox or a coon. And sometimes he could tell from the printings on the white page that the still hunter had been hunted full cry by coyote or timber-wolf. Against these wolfish foes the cat had one sure refuge always--a tree. The hungry coyote might try to starve the bob-cat into surrender; but just as often, the bob-cat could starve the coyote into retreat; for if a foolish rabbit darted past, what hungry coyote could help giving chase? The tree had even defeated both dog and man that first week when Koot could not find the cat. But a dog in full chase could follow the trail to a tree, and a man could shoot into the tree. As the rabbits decreased, Koot set out many traps for the bob-cats now reckless with hunger, steel-traps and deadfalls and pits and log pens with a live grouse clucking inside. The midwinter lull was a busy season for Koot. Towards March, the sun-glare has produced a crust on the snow that is almost like glass. For Koot on his snow-shoes this had no danger; but for the mongrel that was to draw the pelts back to the fort, the snow crust was more troublesome than glass. Where the crust was thick, with Koot leading the way snow-shoes and dog and toboggan glided over the drifts as if on steel runners. But in midday the crust was soft and the dog went floundering through as if on thin ice, the sharp edge cutting his feet. Koot tied little buckskin sacks round the dog's feet and made a few more rounds of the swamp; but the crust was a sign that warned him it was time to prepare for the marten-hunt. To leave his furs at the fort, he must cross the prairie while it was yet good travelling for the dog. Dismantling the little cabin, Koot packed the pelts on the toboggan, roped all tightly so there could be no spill from an upset, and putting the mongrel in the traces, led the way for the fort one night when the snow-crust was hard as ice. * * * * * The moon came up over the white fields in a great silver disk. Between the running man and the silver moon moved black skulking forms--the foragers on their night hunt. Sometimes a fox loped over a drift, or a coyote rose ghostly from the snow, or timber-wolves dashed from wooded ravines and stopped to look till Koot fired a shot that sent them galloping. In the dark that precedes daylight, Koot camped beside a grove of poplars--that is, he fed the dog a fish, whittled chips to make a fire and boil some tea for himself, then digging a hole in the drift with his snow-shoe, laid the sleigh to windward and cuddled down between bear-skins with the dog across his feet.