Louise de la Ramee, also known as "Ouida," was a prolific writer of flamboyant, romantic tales, and this one, Under Two Flags -- written in 1867 -- is one of her best. She's also notable for Moths (1880) and In Maremma (1882). Her stories for children include Two Little Wooden Shoes (1874), Bimbi (1882), and the well-known Dog of Flanders (1872).