Buck’s feet were not so compact and hard as the feet of the huskies. His had softened during the many generations since the day his last wild ancestor was tamed by a cave-dweller or river man. All day long he limped in agony, and camp once made, lay down like a dead dog. Hungry as he was, he would not move to receive his ration of fish, which François had to bring to him. Also, the dog-driver rubbed Buck’s feet for half an hour each night after supper, and sacrificed the tops of his own moccasins to make four moccasins for Buck. This was a great relief, and Buck caused even the weazened face of Perrault to twist itself into a grin one morning, when François forgot the moccasins and Buck lay on his back, his four feet waving appealingly in the air, and refused to budge without them. Later his feet grew hard to the trail, and the worn-out footgear was thrown away.
At the Pelly one morning, as they were harnessing up, Dolly, who had never been conspicuous for anything, went suddenly mad. She announced her condition by a long, heartbreaking wolf howl that sent every dog bristling with fear, then sprang straight for Buck. He had never seen a dog go mad, nor did he have any reason to fear madness; yet he knew that here was horror, and fled away from it in a panic. Straight away he raced, with Dolly, panting and frothing, one leap behind; nor could she gain on him, so great was his terror, nor could he leave her, so great was her madness. He plunged through the wooded breast of the island, flew down to the lower end, crossed a back channel filled with rough ice to another island, gained a third island, curved back to the main river, and in desperation started to cross it. And all the time, though he did not look, he could hear her snarling just one leap behind. François called to him a quarter of a mile away and he doubled back, still one leap ahead, gasping painfully for air and putting all his faith in that François would save him. The dog-driver held the axe poised in his hand, and as Buck shot past him the axe crashed down upon mad Dolly’s head.