The heir
(Book)

"Anna Seaton is a diligent, superbly competent housekeeper who in addition has all the accomplishments of a well bred, well educated lady. She’s also beautiful and considerably younger than most other women similarly situated, leaving her employer, Gayle Windham, the Earl of Westhaven, with a puzzle. As Anna and Gayle grow closer, overcoming differences in station, personality, and expectations, Anna’s secrets threaten to bring the orderly earl’s life crashing down—and he doesn’t know how he’ll protect the woman he’s come to love from the problems she’s been outrunning for years." --publishers' website