Sherlock Holmes is back. In the first authorised novel in about a century, The House of Silk was published this week.
Author Anthony Horowitz was comissioned by the Conan Doyle estate.
In the book, Holmes and Dr Watson investigate a threat against the owner of a gallery.
The BBC reports Horowitz wrote it as a tribute to Sir Arthur Conan Doyle who died 81 years ago.
Horowitz's TV writing credits include Midsomer Murders, Poirot, Robin of Sherwood and Foyle's War. He is also the writer of the Alex Rider series of spy novels.