Train to be a secret agent in this exciting spy puzzle book! Your secret mission, should you choose to accept it: Track down the thief and recover the stolen microchip which stores the secret identities of every spy agent! 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…