And Then There Were None is a mystery novel by English writer Agatha Christie, widely considered her masterpiece and described by her as the most difficult of her books to write. It was first published in the United Kingdom by the Collins Crime Club on 6 November 1939, as Ten Little Niggers, after the British blackface song, which serves as a major plot point. The US edition was not released until December 1939; its American reprints and adaptations were all retitled And Then There Were None, the last five words in the nursery rhyme ("Ten Little Indians").