Cotton Malone battles a group of families whose influence dates back to the American Revolution and who seek to crack a code devised by Thomas Jefferson himself in their quest for power.

Twelve-year-old William Wenton is a code-breaking, puzzle-solving genius. He lives with his family in a quiet Norwegian town. He and his family used to live in England, but eight years ago his grandfather vanished and the Wentons suddenly packed up, moved to Norway, and changed their last name! Neither of his parents will tell William why or share the reason he has to keep his talent for solving codes and puzzles a secret. But then a special exhibit...

"The 16th novel by #1 bestselling author Louise Penny finds Chief Inspector Armand Gamache of the Sûreté du Quebec investigating a sinister plot in the City of Light On their first night in Paris, the Gamaches gather as a family for a bistro dinner with Armand's godfather, the billionaire Stephen Horowitz. Walking home together after the meal, they watch in horror as Stephen is knocked down and critically injured in what Gamache knows is no accident,...

Code-breaking genius William Wenton returns to the Institute for Post-Human Research in hopes of discovering why the intelligent metal luridium in his body seems to be causing seizures, but while there he encounters secrets, increased security, and threats from an enemy he thought was frozen in the basement.

On an island nation in the Indian Ocean, the explorers venture through a vast underwater world and take part in a friendly robotics competition. But the tides of good fortune change quickly. Suddenly, Team Cousteau jumps into action to rescue a faculty member from the brink of death. Meanwhile, the team follows the Cruz's mother's clues to a magnificent tomb and center of spirituality precariously perched on the side of a cliff. There, Cruz is confronted...

Kiki and her friends learn about coding as they compete to be the escort for young narwhal who will visit Trident Academy with her famous parents. Includes glossary, key to the codes used, and information about safeguarding narwhals' habitats.

To crack a secret code, Mac follows the clues to France and Japan where he must use his gaming skills and defeat his enemy, the KGB Man.

A million dollars, or a clue? Police report a break-in at an elite hotel, and the suspects sound suspiciously like Amy and Dan. There's a car and speedboat chase and an angry mob! When there's a clue on the line, anything can happen.

"Harvard professor of symbology Robert Langdon awakens in an Italian hospital, disoriented and with no recollection of the past thirty-six hours, including the origin of the macabre object hidden in his belongings. With a relentless female assassin trailing them through Florence, he and his resourceful doctor, Sienna Brooks, are forced to flee. Embarking on a harrowing journey, they must unravel a series of codes, which are the work of a brilliant...

The eternal war between Heaven and Hell reaches a critical point that forces covert agent Bernadette Callahan and religious historian Batty LaLourie to race throughout the globe in search of ancient biblical codes to stop Satan's apocalyptic plot.