This Old Bill — Loren D. Estleman

Based on the life of Buffalo Bill Cody, this novel is as epic and exciting as the story of the West itself. Cowboy, Pony Express rider, Indian fighter, and scout for General Custer, this legendary American beat the paths that made way for the railroad in America's rugged frontier. But now, in his final hours, old Bill Cody faces the last great challenge of his life, as the legendary glory flares--then fades into a new era.