Ernest William Hornung was an English author and poet known for writing the A. J. Raffles series of stories about a gentleman thief in late 19th-century London. Hornung was educated at Uppingham School; as a result of poor health he left the school in December 1883 to travel to Sydney, where he stayed for two years. He drew on his Australian experiences as a background when he began writing, initially short stories and later novels.

Arthur J. Raffles is a fictional character created in 1898 by E. W. Hornung, brother-in-law of Sir Arthur Conan Doyle, the creator of Sherlock Holmes. Raffles is, in many ways, an inversion of Holmes – he is a "gentleman thief", living at the Albany, a prestigious address in London, playing cricket as a gentleman for the Gentlemen of England and supporting himself by carrying out ingenious burglaries. He is called the "Amateur Cracksman" and often, at first, differentiates between him and the "professors" – professional criminals from the lower classes.