In which the travellers traverse rugged mountain glens and form a temporary companionship with a wary band of Flatheads and Shoshonies, whose history and austere lives amid hostile foes are thoughtfully delineated. They press on through the challenging terrains of the Wind River and the Pilot Knobs, rejoicing at the sight of distant snowy peaks and finding solace in a verdant river valley abundant with game and fruit after many toilsome miles.