Anthony Horowitz, OBE (born 5 April 1955) is an English novelist and screenwriter specialising in mystery and suspense.
Horowitz's work for young adult readers includes The Diamond Brothers series, the Alex Rider series, and The Power of Five series (aka The Gatekeepers). His work for adults includes the novel and play Mindgame (2001), and two Sherlock Holmes novels The House of Silk (2011) and Moriarty (2014). He is the most recent author chosen to write a James Bond novel by the Ian Fleming estate, titled Trigger Mortis. He has also written extensively for television, contributing numerous scripts to ITV's Agatha Christie's Poirot and Midsomer Murders. He was the creator and principal writer of the ITV series Foyle's War, Collision and Injustice. He also wrote a treatment for the upcoming Tintin movie to be directed by Peter Jackson.