Death Song — Richard Dawes

The Tucson Kid is sentenced to death when he's accused of murder after killing a man in a gunfight. He's bought out of his sentence by a woman who has a job for him. A bandit is holding something over her father, and she asks Tucson to infiltrate his gang to discover what it is. Tucson is pitted alone against the outlaws and must face the bandit chief in a battle to the death.