C.J. Box 
Bitterroots [EPUB ebook] 

The latest installment in the crime series that inspired Big Sky.The ties that bind can burn you.Former investigator Cassie Dewell is trying to start over. But when an old friend calls in a favour, she can’t refuse: a man has been accused of assaulting a young woman from an influential family, and he needs Cassie’s help.Against her better judgment, Cassie agrees. But out by the Bitterroot mountains of Montana, twisted family loyalty runs as deep as the ties to the land, and there’s always something more to the story.As Cassie attempts to uncover the truth, she must confront a family whose roots are tangled and deadly, and face the ghosts of her own past.