Kate is a young widow, left alone, having no children of her own, and would do anything to see that her youngest sister, Alison, gets a chance at a happy life. When Alison is taken hostage by an evil warlord who intends to wed her, Kate offers to trade herself to the warlord in place of her sister.
Ethan MacGregor has spent his life fighting among the clans of the Scottish Highlands, trying desperately to bring peace to his territory. Finally ready to settle down and establish a household, he only needs a beautiful young highland lass to share his bed. When he takes the youngest sister of the woman he truly desires, Kate, she falls right into his hands by offering herself in exchange for her sister's freedom.
And though Ethan has promised to release Kate's sister in exchange for a night of passion, he has no intention of letting Kate go.

When Lady Valeria Augusta Marianus is captured by the savage Pict army, she is fearful of her treatment by their renowned and fearless commander. His enemy is the Roman Empire and she is the Cesar’s niece, but Tristan Caileanach is nothing like the wild beast she imagined. Instead his ruggedly handsome face and toned body makes her long to be held in his powerful arms. And her traitorous body can only resist the heat of this fierce warrior’s touch for so long… One night in Tristan’s bed is all it takes for Valeria to give him her innocence and her heart. Yet she knows they have no future together – not when his hatred for all things Roman runs so deep. But when the Roman army descends on the camp and Tristan is enslaved and forced to be a Gladiator, facing death every day, suddenly their roles are reversed. Now all Valeria wants is to give him back his freedom, but Tristan’s only chance is to win it in the arena…