The going here was so rough that both men leaped from their seats and ran beside the sled, one at the front, the other guiding it from the rear. Up and down over the ridges the trail led, winding through the frozen inequalities, the dogs never breaking their tireless trot. They mounted a swelling ridge and rushed down to the level river ice beyond, but as they did so they felt their footing sag beneath them, heard a shivering creak on every side, and, before they could do more than cry out warningly, saw water rising about the sled-runners. The momentum of the heavy sledge, together with the speed of the racing dogs, forced them out upon the treacherous ice before they could check their speed. Emerson shouted, the dogs leaped, but with a crash the ice gave way, and for a moment the water closed over him. Clinging to the sled to save himself, his weight slowed it down, and the dogs stopped. "Fingerless" Fraser broke through in turn, gasping as the icy water rose to his armpits. Slowly at first the sled sank, till it floated half submerged, and this spot which a moment before had seemed so safe and solid became now a churning tangle of broken fragments, men and dogs struggling in a liquid that seemed dark as syrup contrasted with the surrounding whiteness. The lead animals, under whose feet the ice was still firm, turned inquiringly, then settled on their haunches with lolling tongues. The pair next ahead of the sledge paddled frantically, straining to reach the solid sheet beyond, but were held back by their harness. Emerson used the sled for a footing and endeavored to gain the ice at one side, but it broke beneath him and he lunged in up to his shoulders. Again he tried, but again the ice broke under his hand, more easily now. Fraser struggled to get out in the opposite direction, each man aiming to secure an independent footing, but their efforts only enlarged the pool. The chill went through them like thin blades, and they chattered gaspingly, fighting with desperation, while the wheel dogs, involved in the harness, began to whine and cough, at which Emerson shouted: "Cut the team loose, quick!" But the other spat out a mouthful of salt water and spluttered: "I--I can't swim!" Whereupon the first speaker half swam half dragged himself through the slush and broken debris to the forward end of the sled, and seeking out the sheath-knife from beneath his parka, cut the harness of the two distressed animals. Once free, they scrambled to safety, shook themselves, and rolled in the dry snow. Emerson next attempted to lift the nose of the sled up on the ice, shouting at the remainder of the team to pull, but they only wagged their tails and whined excitedly at this unusual form of entertainment. Each time he tried to lift the sled he crashed through fresh ice, finally bearing the next pair of dogs with him, and then the two animals in the lead. All of them became hopelessly entangled.