Only You: Duke of Rutland Series III

Nicholas, heir to the Duke of Rutland, has been kidnapped. Imprisoned aboard a Portuguese slaver, Nicholas learns that his family members have been either captured or slain--but a mysterious woman allays his despair.
Fellow prisoner Alexandra has overheard that his family is safe. But can he believe her? She claims to be a woman of status, but as she cannot prove her story, Nicholas assumes she is a thief. They are in the same predicament, however, and he and Alexandra form a friendship.

Whe...