Agent of the Iron Cross - Bill Mills - Bog

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.