Under $10

Break secret codes and decipher vital messages in this mini book of puzzles. From collecting launch codes to reading spy watches, it's packed with ...

A mini book packed full of fun spy-themed puzzles. Decode top secret messages and infiltrate enemy bases in this book of puzzles. From unmasking do...

Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Sema...