As the two riders expected, they traversed the plains without incident, forded the rivers, and two hours before sunrise were safely perched on the opposite range, high enough to look down on the eagles. These vast stretches of landscape rarely showed signs of human life. One unaccustomed to them would as soon expect to find man or horses walking the ocean's bed; their loneliness was akin to the antarctic seas. That was how it seemed, not how it was. The fierce savages who skulked through the cuts and seams made by erosion did not show themselves, but they were there and might appear at any moment; the desert brotherhood knew this, and well considered their footsteps. Seated on a rock pinnacle, amid brushwood, one man slept while the other watched. Long before nightfall they were again in motion. Around the camp, Indians are indolent, but on the war-path their exertions are ceaseless to the point of exhaustion. It was not possible to thread their way through the volcanic gashes of the mountains by night, but while light lasted they skirted along their slopes day after day, killing game with arrows which Wolf-Voice carried because of their silence and economy. These two figures, crawling, sliding, turning, and twisting through the sunlight on the rugged mountains, were grotesque but harmonious. America will never produce their like again. Her wheels will turn and her chimneys smoke, and the things she makes will be carried round the world in ships, but she never can make two figures which will bear even a remote resemblance to Wolf-Voice and John Ermine. The wheels and chimneys and the white men have crowded them off the earth. Buckskin and feathers may swirl in the tan-bark rings to the tune of Money Musk, but the meat-eaters who stole through the vast silences, hourly snatching their challenging war-locks from the hands of death, had a sensation about them which was independent of accessories. Their gaunt, hammer-headed, grass-bellied, cat-hammed, roach-backed ponies went with them when they took their departure; the ravens fly high above their intruding successors, and the wolves which sneaked at their friendly heels only lift their suspicious eyes above a rock on a far-off hill to follow the white man's movements. Neither of the two mentioned people realized that the purpose of the present errand was to aid in bringing about the change which meant their passing.