Spy Agency Puzzle Book – The Hidden Hacker : Solve Puzzles, Crack Codes and Take on a Top Secret Mission
by HarperCollins Publishers
£5.99
MPN9780008733179
Prices updated 21 May 2026
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Product Description
Train to be a secret agent in this exciting spy puzzle book! Your secret mission, should you choose to accept it: Save the world from chaos by unmasking the hacker threatening to shut down the internet! Put your spy skills to the test with four areas of puzzling challenges from hidden words and code-breaking to logic and observation puzzles, before you take on your top secret mission. Hurry, this message will self-destruct in 3, 2, 1…
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