Do you fancy finding out if you have a talent for morse code? Or discovering whether your crossword hobby might have seen you recruited into the history books? If so and you're a Bletchley Park history buff or a fan of the GCHQ Quiz Book, then this is the book for you. When scouring the land for top-level code-breakers, the Bletchley Park recruiters left no stone unturned. From mathematical-geniuses to sixth-form students who could read orchestral scores, chess masters, linguists, and Egyptologists who could interpret hieroglyphics, code-breakers were gathered from all around the country. Once selected, the chosen few had to complete various tests - chess puzzles, crosswords, secret language translations, complex riddles and more - to see if they had what it takes to join the country's elite code-breaking team. Now you can see if you have what it takes too.