Heart of the Condor:

Because of his actions against the British and French, Spaniard Gabriel Crostobel de Espinosa y Ramirez earns the name El Condor. Searching for his sister and her English husband on Martinique, he saves Lady Sarah Drake from being abducted. Delivering her to the convent where she is to be married, Gabriel realizes he's enchanted--but conquering Lady Sarah will be more difficult than any army he's ever faced.