<Tr> <Th> Followed by </Th> <Td> Sad Cypress </Td> </Tr> <Tr> <Th> Website </Th> <Td> And Then There Were None </Td> </Tr> <P> 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, after the last five words of the song . </P> <P> It is Christie's best - selling novel; with more than 100 million copies sold, it is also the world's best - selling mystery and one of the best - selling books of all time . Publications International lists the novel as the seventh best - selling title . </P>

When was and then there were none written