Reiver's Moon by Jill Staunton

Annella MacAdam loved a lie and didn't know it. Mitchell Fallon was the lie.....and knew it. When their world imploded, he walked away leaving her shattered and alone.

Three years later, Annella is confronted with the man who broke her heart and destroyed her world. Against her will, and for the sake of her small sons and the safety of her family, she must allow him back into her life and worse, into her home but Annella swears to keep him at arm's length...and never trust him again.
SARCIS Detective Senior Sergeant Mitchell Fallon is forced to face the consequences of his betrayal and abandonment of Annella MacAdam when he is directed to work on her property to locate stolen livestock and bust a gang of reivers.
When Annella's father is released from prison the crime wave intensifies. A steer, slaughtered by Midnight Butchers, a spy drone targeting Annella, ice and a restless ghost become features of Mitchell's investigation.
Conflicted by a resurgence of harrowing memories and emotions, Annella and Mitchell form an uneasy alliance as they deal with a small community wracked by drought, debt and drugs.