Jane Annie, or The Good Conduct Prize is a comic opera written in 1893 by J. M. Barrie and Arthur Conan Doyle, with music by Ernest Ford, a conductor and occasional composer.
When the Gilbert and Sullivan partnership disbanded after the production of The Gondoliers in 1889, impresario Richard D'Oyly Carte was forced to find new works to present at the Savoy Theatre. Barrie was then a journalist and a novelist with a few popular books to his credit. He had not yet created his classic Peter Pan, and his only stage productions included a biography that closed after one night, a parody of new-to-London Henrik Ibsen, and in 1892 his first real success, Walker, London for Toole's Theatre.
Barrie brought his idea for Jane Annie to D'Oyly Carte, who suggested that Arthur Sullivan collaborate with him, but Sullivan suggested his former pupil Ford, instead. Ford had composed several operettas, including the one-act Mr. Jericho (premiered at the Savoy in 1893). Barrie could not finish the libretto. He persuaded his friend Conan Doyle – already popular for his Sherlock Holmes mysteries – to work on it. Conan Doyle finished the piece but was constrained by Barrie's work.