Book 3 in the #1 bestselling The 39 Clues series may just be the most thrill-packed yet! ATTENTION! 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...

Shaken by a shocking loss, Amy and Dan flee to an exotic land and trace the footsteps of their most formidable ancestor yet: a military leader of mythic proportions.

Thirteen-year-old Dan Cahill and his older sister Amy race against time to find an ancient map that has not been seen for half a century and use it to redeem their family members who have been kidnapped by a sinister organization called the Vespers.

"Could the Mark Twain books hidden through Book Scavenger contain clues about the string of recent arson fires plaguing the city? And will Emily and James uncover the mystery before the arsonist comes after them?" -- Provided by publisher.

"Grace is the last matriarch of the Cahills, the world's most powerful family. Everyone from Marie Curie to Harry Houdini is related to the Cahills, yet the source of the family's power is lost. 39 Clues hidden around the world will reveal the family's secret, but no one has been able to assemble them. Now the clues race is on, and siblings Amy and Dan must decide what's important: hunting clues or uncovering what really happened to their parents."--...

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. The Queen of England calls on Mac B. once again! This time, Mac must crack a secret code that has been recovered from a double agent. A series of clues leads Mac to France, and then to Japan, where he comes face-to-face with his arch-nemesis, the KGB man... and the world headquarters of Nintendo! Is the KGB Man...

Vega Jane has never left the village of Wormwood. But this isn't unusual, nobody has ever left the village of Wormwood. At least not until Quentin Herms vanishes into the unknown. Vega knows Quentin didn't just leave, but that he was chased. And he's left behind a very dangerous trail of clues that only she can decode. The Quag is a dark forest filled with terrifying beasts and bloodthirsty Outliers. But just as deadly are the threats that exist...

When the Code Busters visit the Carmel Mission, a series of coded messages sets them on the hunt for long-hidden pirate treasure.

"The heat is on as someone seems to be melting the polar ice cap. Special Agent EJ12 needs to crack the codes and keep her cool to put the evildoer's plans back on ice. That's the easy part. As EJ12, Emma Jacks can do anything. So why can't she handle the school Ice Queen of Mean, Nema? Perhaps she can after all. . ." -- Page [4] of cover.

"Evil agency SHADOW is up to something in the middle of the rain forest. Something that could see them get the jump on SHINE. Special Agent EJ12 needs to leap into action. She must crack SHADOW's codes and trust her instincts to foil their plans and save the rain forest. That's the easy part. As EJ12, Emma Jacks can do anything. So why is the state gymnastics meet so hard? Perhaps it isn't after all. . . " -- Page [4] of cover.