A brief look at various codes used through history to send and receive secret messages.
Paperback edition of a successful card pack format, that will unleash the inner code-breaker in all of us!
A set of activity cards to unleash the inner code-breaker in all of us.
Read the series that's sold more than 2 million copies--if you dare! Warning: this description has not been authorized by Pseudonymous Bosch.
A mini book crammed with spy-themed puzzles. Break secret codes and decipher vital messages in this mini book of puzzles.
This is one in a series of KnowHow activity books aimed at children between the ages of seven and twelve. Other books in the series offer ideas on experiments, paper fun, detection, jokes & tricks, and action toys.
Children can keep their brains active and practise their number skills with this handy paperback book, packed with full-colour puzzles to test your numeracy. This is entertaining practice to help support maths lessons at school.
Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 ...
A mini book crammed with spy-themed puzzles. Unmask enemy spies and complete all kinds of exciting missions in this mini book of puzzles.
"This Book is Not Good for You" is actually very good for you...the teasing, topsy-turvy world created by the scrumptious Mr Bosch is guaranteed to have you laughing all the way to the next instalment." - Lancashire Evening Post
This story and activity book is full of magical discoveries, waiting to be explored.