Paul Torridon rides the fabulous steed Ashur on his way to Fort Kendry with his guide, plainsman Roger Lincoln, in The Man from the Sky. When Roger disappears one morning, Paul knows only that finding Fort Kendry by himself will be almost impossible -- and that's if he manages to survive on the empty plains. Then he comes upon ailing Cheyenne warrior Standing Bull sprawled on a small island in a dry gulch . . . On his deathbed, gunman Hank Peyton...