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The true story of a German agent sent to the United States during World War I to launch a terror campaign of sabotage and murder, and the American counterintelligence effort that led to his capture. Full of drama and intrigue, with master spies and double agents, diabolical sabotage devices, secret codes, and invisible ink, Agent of the Iron Cross is the first detailed account of this legendary espionage operation.

Author/historian Bill Mills writes about twentieth-century clandestine operations and espionage history. He is the author of The League: The True Story of Average Americans on the Hunt for World War I Spies, Treacherous Passage: Germany’s Secret Plot Against the United States in Mexico during World War I, and The Estrada Plot: How the FBI Captured a Secret Army and Stopped the Invasion of Mexico. He lives in Concord, Massachusetts with his wife and daughter.