Battle for Her Heart. Belle Fourche Chronicles, #4

Hannah has already learned love can betray. Torn from her home and forced into hiding, she clings to one goal, she must survive long enough to return to the life she lost. The husband she once loved is gone, leaving behind only heartbreak and regret. Worse, the man tasked with keeping her hidden has his own dark motives, and Hannah quickly realizes she's no longer just in danger. she's a pawn in someone else's revenge.
Blake has spent months tracking her. A Pinkerton agent known for getting results, he expects to find the same woman her family is desperate to bring home. Instead, he finds someone guarded, guilt-ridden, and unwilling to trust anyone. Least of all him. Every mile they travel together chips away at his resolve to remain detached. Because Hannah isn't just his assignment anymore. She's a woman who stirs something he thought long buried.
And as danger closes in, Blake will have to decide how far he's willing to go, not just to save her life, but to prove she's still worthy of love. Can Hannah's heart can survive another loss.