Genre

Espionage

Treacherous Passage: Germany’s Secret Plot Against the United States in Mexico During World War I

The Sunken Gold: A Story of World War I Espionage and the Greatest Treasure Salvage in History

The Baltimore Sabotage Cell: German Agents, American Traitors, and the U-Boat Deutschland During World War I

Spy of the Century Alfred Redl & the Betrayal of Austro-Hungary

I Was a Spy! The Classic Account of Behind-the-Lines Espionage in the First World War

The Secrets of Rue St. Roch: Hope and Heroism Behind Enemy Lines in the First World War

Spies of the Kaiser: German Covert Operations in Great Britain during the First World War Era

Secrets in a Dead Fish: The Spying Game in the First World War

The Fourth Horseman: The Tragedy of Anton Dilger and the Birth of Biological Terrorism

Spies in Uniform: British Military and Naval Intelligence on the Eve of the First World War