The Secret Agent Training Manual
Want to be a secret agent or spy when you're older? If so, this is the book for you!
How to Make and Break TOP SECRET Messages
Inside this interactive activity book are more than 100 pages of tips, tricks, and practice exercises for writing and deciphering top secret messages. You'll learn how to make invisible ink, create unbreakable ciphers, and craft your own decoder gadgets. Even if you're not interested in becoming a secret agent, you can use the instructions found in this manual to exchange top secret notes with your friends.