Title: World War I spies
Description: "A historical account of espionage during World War I, including famous spies such as Mata Hari, covert missions, and technologies that influenced the course of the conflict"--
Subjects: World War, 1914-1918, Juvenile literature, Secret service, Spies, History, World war, 1914-1918, World war, 1914-1918, juvenile literature, Spies, juvenile literature
Time periods: 20th century