Kiowa trail - Louis L'Amour

Kate Lundy, owner of the Tumbling B, and Conn Dury, her foreman, told Tom the rules:
men from the cattle drives are forbidden on the north side of town. People appreciated
the money the cowboys spent but thought them too coarse to be near their homes. Enticed
to come calling by Linda McDonald, daughter of one of the leading citizens, Tom Lundy
broke the law and crossed the line. Later that night, he was dead.

Outraged by
her brother's murder, Kate vows to destroy the entire town. But when Aaron McDonald
sends east for an army of hired guns, Conn Dury and the men of the Tumbling B soon
wonder if the price of Kate's revenge is too high.