Mary Anna Custis Lee is a great-granddaughter of Martha Washington, wife of Confederate General Robert E Lee, and heiress to Virginia's storied Arlington house and General Washington's personal belongings. Born in bondage at Arlington, Selina Norris Gray learns to read and write in the schoolroom Mary and her mother keep for the slave children, and eventually becomes Mary's housekeeper and confidante. As Mary's health declines, Selina becomes her personal maid, strengthening a bond that lasts until death parts them. Forced to flee Arlington at the start of the Civil War, Mary entrusts the keys to her beloved home to no one but Selina. When Union troops begin looting the house, it is Selina who confronts their commander and saves many of its historic treasures.