Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their unmatched power? After a whirlwind race that's taken them across five continents, Amy and Dan face the most the difficult challenge yet- a task no Cahill dared to imagine. When faced with a choice that could change the future of the world,...

"Amy and Dan Cahill have been located once again, this time in the company of the notoriously unreliable Alistair Oh. Could they have been foolish enough to make an alliance? Spies report that Amy and Dan seem to be tracking the life of one of the most powerful fighters the world has ever known. If this fearsome warrior was a Cahill, his secrets are sure to be well-guarded . . . and the price to uncover them just might be lethal."--Publisher.

A thrill-seeking Harvard linguistics professor and an ultra-secret branch of the Catholic Church go head-to-head in a race to uncover the secrets of the lost city of Atlantis. The ruins of the technologically-advanced, eerily-enigmatic ancient civilization promise their discoverer fame, fortune, and power ... but hold earth-shattering secrets about the origin of man. While world-famous linguist and archaeologist, Thomas Lourds, is shooting a film...

Abducted during a visit to Turkey, Thomas Lourds is ordered by his murderous captors to translate a lost scroll attributed to the Book of Revelations' John that is being sought aggressively by dangerous, powerful groups for its potential capacity for triggering the Apocalypse.

"In 1814, redcoats burned the White House to the ground. In 1889, Harry Houdini discovered a trick that would save his life. In 1955, the U.S. launched the world's first nuclear submarine. And one family pulled the strings behind the scenes at each of these events: the Cahills--the most powerful family the world has ever known. Now the Cahills have opened their vault and dangerous secrets are pouring out. This book contains three of them--three stories...

Commander Gray Perce and the Sigma Force confront humankind's greatest threat in an adventure that races from the Roman Coliseum to the icy peaks of Norway, from the ruins of medieval abbeys to the lost tombs of Celtic kings. The ultimate nightmare is locked within a talisman buried by a dead saint--an ancient artifact known as the Doomsday Key--and a secret that has already claimed the lives of a famed geneticist, a Vatican archaeologist, and a U.S....

"1940. As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything--beauty, wealth, and the dashing Prince Philip of Greece sending her roses--but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of...

King, Kayla, Mason, and Asia are playing in the snow. Later, Asia discovers her new gold ring is missing. What happened to it? Detective team King & Kayla are on the case! With simple, straightforward language and great verbal and visual humor, the King & Kayla series from Geisel Honor Award-winning team Dori Hillestad Butler and Nancy Meyers is perfect for newly independent readers transitioning from easy readers to beginning chapter books. Great...

As Cruz and his friends continue to search for the third piece of the cipher, a mysterious message arrives suggesting that someone close to him is working for Nebula, leaving Cruz unsure of who he can trust.