“Pack um into camp, roll um in plenty blanket, and I fix um good,” Jim advised.

This was quickly accomplished, and the sufferer made as comfortable as possible. After he had been attended to, and Jim had utilized the medical lore picked up in the camps of his own people, they fed the stranger’s dogs and cooked dinner. They said very little to each other, but each boy was thinking hard, and when they went out into the sunshine a few minutes later, their minds were intent on the same project.

The river had now risen twenty feet, the ice rubbing softly against the top of the bank. All noise had ceased. Countless millions of tons of ice and water were silently waiting the supreme moment, when all bonds would be broken and the mad rush to the sea would begin. Suddenly, without the slightest apparent effort, everything began to move down-stream. The jam had broken.

Slowly at first but faster and faster the frozen sea dashed past. The noise returned again, and the air trembled to a mighty churning and grinding. Huge blocks of ice were shot into the air by the pressure; others butted wildly into the bank; still others, swinging and pivoting, reached inshore and swept rows of pines away as easily as if they were so many matches.

In awe-stricken silence the boys watched the magnificent spectacle, and it was not until the ice had slackened its speed and fallen to its old level that Walt cried, “Look, Jim! Look at the trail going by!”

And in truth it was the trail going by—the trail upon which they had camped and traveled during all the preceding winter. Next winter they would journey with dogs and sleds over the same ground, but not on the same trail. That trail, the old trail, was passing away before their eyes.

Looking up-stream, they saw open water. No more ice was coming down, although vast quantities of it still remained on the upper reaches, jammed somewhere amid the maze of islands which covered the Yukon’s breast. As a matter of fact, there were several jams yet to break, one after another, and to send down as many ice-runs. The next might come along in a few minutes; it might delay for hours. Perhaps there would be time to paddle across. Walt looked questioningly at his comrade.

“Sure!” Jim remarked, and without another word they carried the canoe down the bank. Each knew the danger of what they were about to attempt, but they wasted no speech over it. Wild life had taught them both that the need of things demanded effort and action, and that the tongue found its fit vocation at the camp-fire when the day’s work was done.

With dexterity born of long practice they launched the canoe, and were soon making it spring to each stroke of the paddles as they stemmed the muddy current. A steady procession of lagging ice-cakes, each thoroughly capable of crushing the Peterborough like an egg-shell, was drifting on the surface, and it required of the boys the utmost vigilance and skill to thread them safely.