Knight's Ransom — Suzanne Barclay

Kidnapped... In a heartbeat, Catherine Sommerville's world had changed, transforming her from a cosseted heiress to a prize held for ransom by a battle-scarred knight. Reason demanded that she despise Gervase St. Juste, but her soul whispered that they had been born beneath the same star... Though murderous blood flowed through her veins, the woman Gervase had stolen was not the coldhearted shrew he had been led to believe. Gentle as a spring rain, Cat brought on a fury of an entirely different sort, raising within him a tempest of forbidden desire....