The Vespers have ordered Amy and Dan to find a legendary map that belonged to Marco Polo, and the hunt takes them to Eastern Europe where they make a terrifying discovery about one of their supposed “allies.”

What would happen if you discovered that your family was one of the most powerful in human history? What if you were told that the source of the family's power was hidden around the world, in the form of 39 Clues? What if you were given a choice - take a million dollars and walk away...or get the first Clue? If you're Amy and Dan Cahill, you take the Clue - and begin a very dangerous race.

The Cahill family has a secret. For five hundred years, they have guarded the 39 Clues - thirty-nine ingredients in a serum that transforms whomever takes it into the most powerful person on earth. If the serum got into the wrong hands, the disaster would rock the world. So certain Cahills have always made it their mission to keep the serum safe, buried, locked away. Until now. Thirteen-year-old Dan Cahill and his older sister, Amy, are the latest guardians of the Clues. They think they've done everything right, but a tiny mistake leads to catastrophe.

At only seventeen years old, Ian Kabra is head of the Cahills, the most powerful family in the world. He has presidents on speed dial, generals at his beck and call. Ian knows he's an ideal leader and the only man for the job. There's just one small problem: He's already messed up big time. A Cahill from the past calling himself the Outcast has risen to challenge Ian with an impossible test. The Outcast has re-created four of history's greatest disasters and dared Ian to stop him.

Calling all Cahills! Announcing a 39 Clues Superspecial adventure - the gang is back, and called to investigate one of their own: Sinead Starling.

For 500 years, the Cahills have been the most powerful family in the world. For 500 years, they've protected the source of their power - the 39 Clues. And for 500 years, they've kept their secrets silent. Until now. This extraordinary stand-alone novel cracks open the Cahill vault to tell the story of the most coveted piece of artwork in the world, a masterpiece that has been the target of seven separate theft attempts: Jan van Eyck’s altarpiece at Ghent.

An all-new, mesmerizing adventure from the masterful Gordon Korman! Jackson Opus has always been persuasive, but he doesn't know that he's descended from the two most powerful hypnotist bloodlines on the planet. He's excited to be accepted into a special program at the Sentia Institute - but when he realizes he's in over his head, Jackson will have to find a way to use his powers to save his friends, his parents, and his government.

Aidan and Meg Falconer are their parents' only hope. The Falconers are facing life in prison -- unless Aidan and Meg can follow a trail of clues to prove their innocence. The problem? Right now they're trapped in a juvenile detention center. Until they escape one night -- and find themselves on the run, both from the authorities and from a sinister attacker who has his own reason to stop them.

It's every brother's worst fear: As Aiden and his sister, Meg, are walking home from school one day, a van pulls over and Meg is kidnapped. Aiden is the only witness to his sister's disappearance. Why has Meg been kidnapped? As a vendetta against Meg and Aiden's parents? Or is there an even bigger conspiracy at work? While Meg fends off her kidnappers and plans an escape, Aiden must team up with the FBI to find her - tracking down clues only a brother could recognize.

Mason and Ty were once the very best of friends, like two nerdy sides of the same coin...until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he’d give anything for is a do-over. But that can’t happen in real life - can it? As a science kid, Mason knows do-overs are impossible, so he can’t believe it when he wakes up from a freak accident and finds himself magically transported back to seventh grade. 

After angering his father, Zeus, the god Apollo is cast down from Olympus. Weak and disoriented, he lands in New York City as a regular teenage boy. Now, without his godly powers, the 4,000-year-old deity must learn to survive in the modern world until he can somehow find a way to regain Zeus' favor. But Apollo has many enemies - gods, monsters, and mortals who would love to see the former Olympian permanently destroyed.

Twelve-year-old Percy Jackson is about to be kicked out of boarding school...again. No matter how hard he tries, he can't seem to stay out of trouble. But can he really be expected to stand by and watch while a bully picks on his scrawny best friend? Or not defend himself against his pre-algebra teacher when she turns into a monster and tries to kill him? Of course, no one believes Percy about the monster incident; he's not even sure he believes himself.

 In the last installment of the third arc of the Wings of Fire series, tensions are higher than ever as we prepare for a fight for the survival of all dragonkind! 

In their exciting final adventure, Carter and Sadie Kane are the mortal world's only hope of defeating the forces of chaos. He's b-a-a-ack! Despite their best efforts, Carter and Sadie Kane can't seem to keep Apophis, the chaos snake, down. Now Apophis is threatening to plunge the world into eternal darkness, and the Kanes are faced with the impossible task of having to destroy him once and for all. Unfortunately, the magicians of the House of Life are on the brink of civil war.

Thanks to the evidence Ben uncovered in his investigation of the Croatoan, the CIA has tracked his nemesis, Murray Hill, to Central America, where they believe he is boarding the world’s biggest cruise ship, The Emperor of the Seas, on its maiden voyage around the world. His mission: Pose as part of a family, with Alexander and Catherine Hale as his parents, Erica as his sister, and his best friend Mike as his brother, to find out what Murray is plotting.