** WINNER OF 'STOCKING FILLER OF THE YEAR AWARD' GUARDIAN ** Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's secr

Mickey is the type of kid who's always on the lookout for a code to crack. So it's her lucky day when she spots a strange poster on the bus home from school wri

Have you daydreamed of being approached to be a secret agent? Imagined yourself being propelled into the dangerous and elegant world of spies? Blending extraord

The sinister Umbra has their sights set on recruiting a North Korean nuclear physicist by any means necessary, and the City Spies plan to keep an eye on his son

This book contains 25 secret codes for your child to crack! Suitable for ages 6 - 10, this book contains clues and answers as well as space to create their own