"The U.S. Civil War was a war that changed the face, body, and heart of the United States forever. Secrets of the U.S. Civil War reveals little-known stories of the people, weapons, and battles that have affected the maps on our walls and the allegiances in our hearts."--

"This title takes a close look at the operatives who collected intelligence for the Union and the Confederacy during the Civil War, introducing readers to these colorful characters and explaining how they carried out their risky missions."--Publisher's website.

During the Civil War, African American Mary Bowser becomes a maid in the Richmond mansion of Confederate States of America president Jefferson Davis as part of a plan to pass along secrets to help the Union. Includes a replica of a Confederate decoder, plus other spycraft materials, in a sealed envelope to help the reader discover clues found in the text and illustrations.

Presents first-hand accounts by men and women who risked their lives in underground activities for the North and the South. A history of the Civil War's secret missions.

Describes the dangerous missions of several Civil War spies.

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...

"Discusses the history of spying during the Civil War"--Provided by publisher.