The Half-Hearted is a 1900 novel of romance and adventure by the Scottish author John Buchan. It was Buchan's first novel in a modern setting and was written when he was 24 while working for an All-Souls fellowship and reading for the bar. The Half-Hearted is a novel in two parts: part I is a story of manners and romance in upper class Scotland, while part II is an action tale of adventure and duty in northern India. The novel is set in the closing years of the 19th century and explores the way in which the social expectations of the main characters shape the paths they must tread.