For ten years Sam Enthoven worked in a big London bookshop on Charing Cross Road. His first book, The Black Tattoo, was published in 2006. His follow- up to The Black Tattoo (but not a sequel), Tim, Defender of the Earth is, as he modestly puts it, "Phase Two of my sinister masterplan to conquer the universe!" He is committed to writing books that make young people want to read. He lives in Hackney, London.