Mark Desborough's Vow is a novel written by Annie S. Swan in 1884. The story revolves around the life of the titular character, Mark Desborough, who makes a vow to his dying father to never marry for love, and instead marry for money and social status. However, his resolve is tested when he meets and falls in love with a beautiful, but poor, woman named Rosamund. Despite his feelings, he is torn between his duty to his father and his desire for Rosamund...