The Hungry Gun (Jubal Cade Western #03)

The hungry gun is a .30 caliber Spencer rifle repeater—the deadliest gun in the West. Its owner is Jubal Cade. A trained doctor, his mission in life is no longer to treat the sick but to track down the scar-faced murderer of his wife. And to kill him.
Cade rides a train populated by an all-female entertainment troupe. He discovers that there’s a slim chance that one has a clue to his wife’s killer. Before he can learn anything, the train is robbed by Mexican bandits and the women captured. I...