The Wolf of Kisimul Castle by Heather McCollum

Mairi Maclean is kidnapped on her wedding day by the enemy of her dead husband. Taken north to the water-surrounded Kisimul Castle, she is held captive in the name of retribution. But The Wolf of Kisimul Castle soon learns Mairi is not a docile pawn in this game of war between neighboring Scots. Nor will she be frightened into walking down the aisle to wed the fierce Highland chief.

Alec MacNeil is set on revenge. When he finds his enemy dead, he takes his wife to replace the one that was murdered. An eye for an eye. A bride for a bride. But Mairi is more tiger than kitten and refuses to bend to his will. Set stubbornly against one another, the passion that flares between them threatens to tear Alec’s strategy to shreds.