Top Secret Files

Flame throwers, spy trees, bird bombs, and Hell Fighters were all a part of World War I, but you won''t learn that in your history books! Uncover long-lost secrets of spies like Howard Burnham, “The One-Legged Wonder,” and nurse-turned-spy, Edith Cavell. Peek into secret files to learn the truth about the Red Baron and the mysterious Mata Hari. Then learn how to build your own Zeppelin balloon and...