Become a top secret codebreaker and learn all about Bletchley Park and the incredible history of codebreaking! Crammed with crosswords, riddles, number games and brainteasers, and written by bestselling author Sinclair McKay , this book will delight budding puzzlers while giving children a rare glimpse into the fascinating work of Bletchley Park. Publisher: Hachette Children's Group Author(s): Sinclair McKay Number of pages: 288 Publication date: 2024 Dimensions: 234 x 152 x 22 Cover type: Paperback / softback