Hunter Moon (Apache Protectors)

The Warrior's Redemption 

Clay Cosen wants nothing more than to put his dark past behind him, but his work impounding free-roaming cattle is creating new enemies. Rancher Isabel Nosie has her own reasons to mistrust him. She loved him once, and she's never forgiven him for her fiancé's death—a death she thinks Clay could have prevented. When someone starts killing her cattle, though, she has no choice but to turn to the best tracker on the reservation. 

Soon, Izzie herself is in danger, and Clay's attempts to protect her and clear her name make him a target—and a suspect. Clay risks losing everything: the respect of his family and his tribe, and the woman he's never stopped loving.