Packed with tips, hints and advice on all the tricks needed to be a super spy, including how to write and break codes, how to use disguises to avoid detection and how to stalk and shadow enemy spies effectively. Includes spy-tests, observation quizzes and code-cracking challenges.

"Le Carré for ten-year-olds, this book made espionage seem like a perfectly viable profession." - Author David Nicholls in The Saturday Times