The Train Robbers — John Dyson

When a couple of drifters - outlaw Pete Bowen, and his partner, Howling Wolf, rob a train on its maiden run from Red Rock across Indian Territory, they get more than they bargained for - a haughty beauty, Katherine Baxter, daughter of Red Rock's richest citizen. Hotly pursued by a posse and an evil Indian killer, they head for the hills dragging Katherine along. Howling Wolf wants vengeance on the town for the death of his sister. Black Pete is more interested in ransom money. And both have Katherine on their minds.