From breaking enemy agents' ciphers to translating long lost languages, help solve all kinds of secret codes and mysterious messages in this exciting book, which is packed with over 100 puzzles. With safe combinations to crack, computer systems to hack, and much more, there's plenty to keep young codebreakers busy on journeys, rainy days and holidays.

About the Authors

Sam grew up in Buckinghamshire, falling off various bicycles before reading books and making up his own stories about more competent heroes. After studying English at Cambridge University, he joined Usborne in 2013, and now writes titles ranging from fold-out solar systems to maze books full of swashbuckling pirates. Sometimes, Sam cycles to work.

Sarah grew up in the West Midlands, where she spent her days reading, running and making her own magazines. She studied English and Film at university, and in her spare time, you'll find her knitting in a coffee shop or defending shots on the netball court.

Kirsteen Robson joined Usborne in 1997 with a background in music, education, and Christian publishing. She has written and edited over 300 Usborne titles, from dictionaries and encyclopedias to activity books with flaps, stickers and sounds. She loves the challenge of writing about anything from aardvarks to zombies.

"About this title" may belong to another edition of this title.

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