But, sure-footed as the native chamois, with never a falter nor a backward look, the boy made the crossing, backed against the mound of upturned earth in which the roots of the fallen pine were imbedded, and fixed apprehensive eyes upon the burdened Schneider bravely and steadily advancing over the shaking bridge. Once the boy fancied that, with the earth clods tumbling from the mound behind, the whole structure was about to give, and he instinctively reached out for what would have been a vain endeavor to prevent the threatened disaster. A moment later, with mingled sighs of exertion and relief, the man and boy clasped hands--on solid ground once more. The wounded officer had not realized other than that he suffered by the necessary lifting of his nerve-racked body. Hardly a second, though, for the silent congratulation. On the level the defenders had just quitted in such thrilling manner swarmed Russian pursuers, seeking with fierce activity those who had conducted baffling resistance for several hours. "Hear them yell," said Henri in suppressed tone. "It's a sound better for the distance." As Schneider made this comment he set shoulder against the root-threaded mound that anchored the fallen pine. With cracking of straining sinew the powerful pusher put every ounce of his wonderful strength into the effort of dislodgment. Thrice he failed, and then, with a tearing, grinding give, the mass loosened; another heave, and, as the perspiring giant threw himself backward, just escaping the void, the great trunk left its moorings and crashed with a tremendous shower of soil and stone into the abyss. Schneider in a jiffy, and breathing like a porpoise, dragged on his boots, again picked up the feebly remonstrating captain, and led Henri a merry chase around a rocky bend into the bush-grown level tabled between this and the next mountainous range. Finally halting, and now beyond hearing of the whoops of the discomfited Russians, apprised of the escape of their prey by the crashing fall of the old pine, Schneider indulged in a cheer on his own account. "Tough sledding, my boy, but a clean pair of heels to the gentlemen with the sheepskin overcoats. I don't know what's coming next, yet we can count on a 'next' coming." Henri had to put in a sad word, owing to the depletion of the food store--the knapsack contained less than two days' rations for one man. The eyes of the two aviators met in meaning glance--meaning that the remaining food should all be reserved for the ailing soldier, now sleeping quietly in his blanket roll. Many a time in the hours of weary tramping did the aviators tighten their belts, but without a single utterance of complaint or bemoaning of sad fate. To the gnawings of hunger happily were not added the torments of thirst. Snow and ice served that desire.