Mysterious messages
Gary L. Blackwood · 2009
As an Amazon Associate we earn from qualifying purchases. Some book links are affiliate links; you pay the same price and we may earn a small commission.
About this book
History's amazing secrets and codes—and how to crack them yourself.This fascinating look at history's most mysterious messages is packed with puzzles to decode and ciphers that kids can use themselves. Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers. As computers change the way we communicate, codes today are more intriguing than ever.From invisible ink to the CIA, this exciting trip through history is a hands-on, interactive experience— so get cracking!
Appears in these reading paths
Best Books on Geocaching, in Reading Order
Related reading guides
Reader reviews
Ratings and notes from readers — tagged with how deep into the subject they were.
Loading reviews…