"That means open water above," Daw explained. "Pretty soon she'll jam somewheres, an' the river'll raise a hundred feet in a hundred minutes. It's us for the tops if we can find a way to climb out. Come on! Hit her up I! An' just to think, the Yukon'll stick solid for weeks." Unusually narrow at this point, the great walls of the canyon were too precipitous to scale. Daw and Linday had to keep on; and they kept on till the disaster happened. With a loud explosion, the ice broke asunder midway under the team. The two animals in the middle of the string went into the fissure, and the grip of the current on their bodies dragged the lead-dog backward and in. Swept downstream under the ice, these three bodies began to drag to the edge the two whining dogs that remained. The men held back frantically on the sled, but were slowly drawn along with it. It was all over in the space of seconds. Daw slashed the wheel-dog's traces with his sheath-knife, and the animal whipped over the ice-edge and was gone. The ice on which they stood, broke into a large and pivoting cake that ground and splintered against the shore ice and rocks. Between them they got the sled ashore and up into a crevice in time to see the ice-cake up-edge, sink, and down-shelve from view. Meat and sleeping furs were made into packs, and the sled was abandoned. Linday resented Daw's taking the heavier pack, but Daw had his will. "You got to work as soon as you get there. Come on." It was one in the afternoon when they started to climb. At eight that evening they cleared the rim and for half an hour lay where they had fallen. Then came the fire, a pot of coffee, and an enormous feed of moosemeat. But first Linday hefted the two packs, and found his own lighter by half. "You're an iron man, Daw," he admired. "Who? Me? Oh, pshaw! You ought to see Rocky. He's made out of platinum, an' armour plate, an' pure gold, an' all strong things. I'm mountaineer, but he plumb beats me out. Down in Curry County I used to 'most kill the boys when we run bear. So when I hooks up with Rocky on our first hunt I had a mean idea to show 'm a few. I let out the links good an' generous, 'most nigh keepin' up with the dawgs, an' along comes Rocky a-treadin' on my heels. I knowed he couldn't last that way, and I just laid down an' did my dangdest. An' there he was, at the end of another hour, a-treadin' steady an' regular on my heels. I was some huffed. 'Mebbe you'd like to come to the front an' show me how to travel,' I says. 'Sure,' says he. An' he done it! I stayed with 'm, but let me tell you I was plumb tuckered by the time the bear tree'd.