Outback Skies by Suzanne Cass

His heart it the only thing he can’t afford to risk.

Indy Solomon is recovering from a broken heart. Hoping to get her life back on track she takes her horses and her dogs to north Queensland and finds solace and friendship working with the crew at Stormcloud Station. She knows what happens when you place your trust in the wrong person, so she’s not in the market for love.
Finn Carmody is a detective with a job to do, and he’s used to being in control. His one goal is to find out how the drug cartel are moving their illegal bounty. But to do this he has to pose undercover as a rough-riding, contract musterer. Nothing prepares his heart for when he meets gutsy, beautiful Indy, and when one of the cattle truck drivers is found brutally murdered, the urge to risk everything to keep her safe is overwhelming.
Then Indy disappears, and Finn has to make a choice; finish the mission or protect the woman he’s come to love.