It 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. A suburban wife and mother who led a secret double life, her remarkable contributions to the science of cryptology would only come to light decades after her death when classified...

"Jack Miller stumbles through the Civil War, winding up a telegrapher and cryptographer for the army. In the field with General Sherman in Georgia, he is captured along with his precious cipher key. His captor, Hamilton Buckley, thinks he should have been president of the Confederacy, not Jefferson Davis. Jack doubts Buckley's sanity and longs to escape. Buckley's kindhearted niece, Marilla, might help him -- but only if Jack helps her achieve her...

The secret Catholic organization known as Opus Dei has struck. The elderly curator of the Louvre has been found dead inside the museum, surrounded by eldritch ciphers in invisible ink. It is up to Harvard semiotician Robert Langdon and his French cryptologist partner Sophie Neveu to decode the cipers, and get to the bottom of an ever-widening mystery. They discover that the late curator was the gatekeeper of the "Priory of Sion", a secret society...

A battle-weary Marine is assigned to guard - and ultimately befriends - a young Navajo soldier who has been trained to be a code talker. This code, the Navajo code, and the men who knew the code, were to be guarded as they went into action. It was the unspoken duty of the Marine to kill the Navajo soldier before he could be taken prisoner of war by the Japanese. This is the one wartime code that was never broken by the enemy.

FBI cryptographer Eloise Marshall is grieving the death of her brother, who died during the attack on Pearl Harbor, when she is assigned to investigate a seemingly innocent letter about dolls. Agent Phillip Clayton is ready to enlist and head overseas when asked to work one more FBI job. A case of coded defense coordinates related to dolls should be easy, but not so when the Japanese Consulate gets involved, hearts get entangled, and Phillip goes...

Angels & demons: Expert symbologist Robert Langdon is summoned to Rome when four Cardinals are abducted by the church's nemesis, The Illuminati. Joining forces with beautiful professor of physics and biology Vittoria Vetra, Langdon pursues obscure and ancient clues through secret passages, cathedrals, crypts and the most secret vault in history to succesfully prevent The Illuminati blowing up Vatican City. The DaVinci code: When respected American...