Highlander Sworn by Jayne Castel

Letting her instincts rule could mean her ruin. A prisoner, a clan-chief’s daughter, and an impossible love.

Beautiful yet flighty, Eilidh Munro has caught a chieftain’s eye—but it’s not him she wants. Instead, she longs for the enigmatic Gunn hostage, who works the fields by day and is locked away in the dungeons beneath her keep at night.
Will Gunn has never understood the influence women wield over men: he lives on his terms, and no one else’s. And right now, he’s focused on gaining his freedom and returning home to his kin.
Yet Will finds himself distracted by visits from the lovely Eilidh. The raw, fierce connection between them can’t be denied.
When the shadow of war falls across the Highlands, and the Mackay clan-chief sets Will free, Eilidh is elated. Finally, they could have a future together.
But how much does she really know about the man she’s fallen for?