He was the Highland enemy she once saved. Now he's the warrior who captured her. When Lady Lilias MacEanruig escapes a brutal betrothal to a notorious English lord, she risks everything for freedom-only to fall straight into the hands of the Highlander who betrayed her years ago. Niall MacCraith was once her secret. Her mercy. Her mistake. Now, he's her captor. Charged with delivering Lilias to his clan as a political pawn, Niall never expects the fiery woman she's become-or the desire that burns between them. But with every mile they travel through hostile land and whispered betrayal, the line between duty and temptation blurs. She's the woman he never forgot. He's the warrior she can never trust. But some vows are written in blood. And some hearts will only be claimed by fire. If you crave brooding Highland warriors, fierce heroines on the run, slow-burn angst, and steamy forced proximity and enemies-to-lovers tension, Her Highlander's Vow will steal your breath-and your heart.