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1) The Cold War
Author
Series
Language
English
Description
Presents a history of the Cold War, highlighting notable spies of the era and the tools they used.
Author
Series
Language
English
Description
The pigpen cipher, the Devil's Coffee Mill, and germ warfare were all a part of the Civil War, but you won't learn that in your history books! Discover the truth about Widow Greenhow's spy ring, how soldiers stole a locomotive, and the identity of the mysterious "Gray Ghost." Then learn how to make a cipher wheel and send secret light signals to your friends. It's all part of the true stories from the Top Secret Files: The Civil War. Take a look if...