Protesters called it an act of war when the U.S. Coast Guard sank a Canadian-flagged vessel in the Gulf of Mexico in 1929. It took a cool-headed codebreaker sol

Brief life sketches and achievements of 51 eminent spies and spymasters.

An inspiring true story, perfect for fans of Hidden Figures, about an American woman who pioneered codebreaking in WWI and WWII but was only recently recognized

As WWII rages in the Pacific, a mother and daughter grapple with grief and suspicion in this historical novel of love, friendship, and perseverance. Hawaii, 194

From the Biblical days of Delilah to modern times there have been women who ventured at their peril as spies into the conflicts of armed men. Recounted in this