The Lady and the Pirate = The Vixen's Revenge

the long version

The Jacobite rebellion of 1745 left Mary Vernon's father with a black mark on him as a Jacobite sympathizer. Mary knows her father was unjustly accused and vows to find the person responsible. She hears about a man called Ventnor who was in town when her father was accused. She takes a job as companion in Lord Ventnor's remote house on the windswept moors. Alone and friendless, Mary is nevertheless determined to prove that Lord Ventnor is the person who accused her father. But he has a Jacobite mother, a handsome brother, and a devoted servant, too. Whoever it is is equally determined to stop Mary from discovering the truth, about her father or about her own heart.