"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!"
"Washington, D.C., 1864: In a city that's weary of war and eager for entertainment, Joseph and his father's mind-reading act has become the toast of the town. Even President Lincoln comes to see Joseph demonstrate his amazing mental powers. It's all an elaborate hoax, of course, but Joseph is enjoying his fame. Then he meets Cassandra, a young girl who really does have second sight-the ability to foretell events. And she's having terrifying visions about the president. Someone is plotting to murder him. But who would believe such an accusation? It's up to Joseph and Cassandra to interpret the visions, expose the conspiracy, and save Lincoln's life!"
