The Day of the Gun (A Breed Western #17)

Matthew Gunn, alias Azul—half-white, half-Apache, all-killer—was just passing through Valverde, a two-bit town down on the border. So was Honest Abe Cannon, an ageing shootist with a deadly reputation.
Abe Cannon, weary of fighting and killing, was off to claim his ranch in Utah and spend the rest of his days in peace. The shoot-out in Valverde proved that Abe’s days as a top gunfighter were numbered, So he hired Azul to escort him and his saddle bags full of money through hostile Apache cou...