Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.

Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.

Dozens of codes and hidden messages are presented as riddles, poems and other fun-filled expressions.

Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.

Explains various methods used in cryptography and presents examples to help readers in breaking secret codes

Tells the stories of ninety-five situations in which code and hidden messages have been used throughout history.

The world's leading toy manufacturer gives each toy it creates a tiny, computerized brain and a unique personality making for some seriously awesome toys. But sometimes there's a faulty toy . . . Dan is a "Snugliffic Cuddlestar" bear--he should be perfect for hugging. But because of a malfunctioning chip, Dan is so strong he could crush a car. Thrown into the rejects pile, he meets Arabella, a "Loadsasmiles Sunshine" doll, who has a very short temper. Soon Dan, Arabella, and Flax (a custom-made police robot rabbit) are recruited by the head of the toy world exactly for what makes them unfit. And their first mission is a doozy: to protect a senator's eight-year-old son from being kidnapped. With black-and-white illustrations throughout, this hilarious book has reluctant reader appeal written all over it.