To celebrate the upcoming publication of the brand new Sherlock Holmes novel from bestselling author Anthony Horowitz, Orion Books are giving you the chance to win a signed, numbered proof copy of The House of Silk.
Preorder House of Silk from Amazon (UK, US, Canada, France, Germany)
This brand new story, written with the full endorsement of the Conan Doyle Estate, is a brilliant mystery novel, stripped back to the original style of Conan Doyle. Watch the book trailer, featuring the author reading an excerpt.