Holmes and Watson face treachery and danger in the latest full-length thriller by Bonnie MacBird , author of the bestselling Sherlock Holmes novel Art in the Blood. Publisher: HarperCollins Publishers Author(s): Bonnie MacBird Number of pages: 384 Collection: A Sherlock Holmes Adventure Publication date: 2025 Dimensions: 242 x 164 x 35 Cover type: Hardback