Joining the elite Bletchley Park codebreaking team during World War II, three women from very different walks of life uncover a spy's dangerous agenda years later against the backdrop of the royal wedding of Elizabeth and Philip.

Tells the fascinating story of Elizebeth Smith Friedman, the groundbreaking cryptanalyst whose painstaking work decoding thousands of messages for the U.S. government would send infamous gangsters to prison and bring down a massive, near-invisible Nazi spy ring in WWII. Together with her husband, the legendary cryptologist William Friedman, Elizebeth helped develop the codebreaking methods that led to the creation of the powerful new science of cryptology...

A dual-timeline historical novel of codebreaking, secrets, murder, and romance, set in Hawaii in 1943 and 1965, follows two women--a cryptanalyist working to defeat the Japanese Army, and a rookie journalist investigating the disappearance of a high-profile guest during the grand opening of the Mauna Kea Beach Hotel.