The blockbuster series continues with a Cahill family member from the past bent on revenge! Who is the Outcast, and why is he threatening the lives of innocent people? Book 3 reveals a shocking secret that will send Amy and Dan - and the world - reeling.

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.

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

Amy and Dan find themselves in a new global race but this time, everything’s different. Those closest to them might be working for the enemy, and Amy and Dan are forced to ask themselves how far they’re willing to go to save the kidnapped Cahills. How much can you risk when there’s no one to trust?

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.

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.

When best friends Dak Smyth and Sera Froste stumble upon the secret of time travel - a hand-held device known as the Infinity Ring - they're swept up in a centuries-long secret war for the fate of mankind. Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course. Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it.

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.

Magnus Chase has always been a troubled kid. Since his mother's mysterious death, he's lived alone on the streets of Boston, surviving by his wits, keeping one step ahead of the police and the truant officers. One day, he's tracked down by an uncle he barely knows - a man his mother claimed was dangerous. Uncle Randolph tells him an impossible secret: Magnus is the son of a Norse god. The Viking myths are true. The gods of Asgard are preparing for war. Trolls, giants and worse monsters are stirring for doomsday.

Eli Frieden lives in the most perfect town in the world: Serenity, New Mexico. In this idyllic place, every lawn is perfectly manicured, and everyone has a pool and a tree house. Honesty and integrity are valued above all else. The 30 kids who live there never lie--they know it's a short leap from that to the awful problems of other, less fortunate places. Then one day Eli bikes to the edge of the city limits, and something so crazy and unexpected happens, it changes everything.

Ana Dakkar is a freshman at Harding-Pencroft Academy, a five-year high school that graduates the best marine scientists, naval warriors, navigators, and underwater explorers in the world. Ana's parents died while on a scientific expedition two years ago, and the only family's she's got left is her older brother, Dev, also a student at HP. Ana's freshman year culminates with the class' weekend trial at sea, the details of which have been kept secret. She only hopes she has what it'll take to succeed.

In the long-awaited sequel to Fablehaven, the dragons who have been kept at the dragon sanctuaries no longer consider them safe havens but prisons, and they want their freedom. The dragons are no longer our allies....

Though the Greek and Roman crewmembers of the Argo II have made progress in their many quests, they still seem no closer to defeating the earth mother, Gaea. Her giants have risen - all of them - and they're stronger than ever. They must be stopped before the Feast of Spes, when Gaea plans to have two demigods sacrificed in Athens. She needs their blood - the blood of Olympus - in order to wake.

Will the twins make it back home to California in one piece, or will they fall off the top of the Golden Gate Bridge? It's all coming to an end with this fifth book in the Genius Files series. You'll have to listen to believe it!

 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! 

Alexander Grant is a little too good at a few too many things. Two dozen martial arts. Twice that many languages. Chess, the piano, sports, forging excused absences, you name it. He graduated high school top of his class...17 times. Of course, no one knows any of this...when a mysterious cabal attempts to kidnap him and kill his friends, Alexander must use all his skills and centuries of training to outwit the most dangerous man alive, the mastermind of a plot that would change the world forever.

Breathable air on Earth is running out and no one knows why. A mysterious discovery nearly 30 million years old may hold the answer. To find it, a glaciologist and the inventor of a cutting-edge brain implant will need to work together. But can they unlock its shocking secrets in time to save humankind? Filled with stunning twists and turns, Augmented is a technothriller that will leave you breathless!

The blockbuster series continues with a Cahill family member from the past bent on revenge! Who is the Outcast, and why is he threatening the lives of innocent people? Book 3 reveals a shocking secret that will send Amy and Dan - and the world - reeling.

In 2018, Canadian archaeologist Ron Jackson makes a mind-boggling discovery in Antarctica - right before disappearing without a trace, leaving behind only his controversial theory that humans have lived on Earth far, far longer than we think they have. Decades later, in 2042, when Jackson's wife dies under mysterious circumstances, an unlikely pair of investigators, Agatha Devenworth and Pano Hofer, begin investigating whether her death might be connected to Jackson's disappearance. 

Twenty years ago, a terrified young boy was abducted in the middle of the night by masked intruders while his sister watched, paralyzed with fear. Returned after a harrowing nine months with his captors, Thea's brother has never been the same. This life-shattering experience drove Thea to become what she is today: a world-class freedom broker. Most hostage-recovery work is done at the negotiation table, but when diplomacy fails, Thea leads Quantum Security International's black-ops team on highly sensitive rescue missions.

Harmony Black is much more than your average FBI special agent. In addition to being a practicing witch, she's also an operative for Vigilant Lock, an off-the-books program created to battle occult threats - by any means necessary. Despite her dedication to fighting the monsters threatening society, Harmony has become deeply conflicted about her job. Her last investigation resulted in a pile of dead bodies, and she suspects the wrong people are being punished for it.

The thrilling finale of The Lost Chambers trilogy sends former government agent Sean Wyatt and his sidekick Tommy Schultz deep into the heart of some of the oldest mountains in the world in search of a treasure that many believed were lost to antiquity. While the two and their new friend Adriana Villa race toward their goal, they encounter deadly villains and a man with an evil plan that could wipe out most of civilization.

Space travel just isn't what it used to be. With the invention of quantum teleportation, space heroes aren't needed anymore. When one particularly unlucky ex-adventurer masquerades as famous pilot and hate figure Jacques McKeown, he's sucked into an ever-deepening corporate and political intrigue. Between space pirates, adorable deadly creatures, and a missing fortune in royalties, saving the universe was never this difficult!

When famed engineer and test pilot Jericho Fox is sent to investigate an explosion on Astraea Station, he discovers that the emergency is more than a simple system failure. The issues cascade too fast to be accidents, and Fox senses a disaster is imminent. Meanwhile, decorated astrophysicist Dr. Evelyn Park becomes the lead suspect in the attack. She’s forced to take matters into her own hands and fight to protect what she believes is humanity’s greatest discovery: a potential alien signal from the planet Kepler-1649c.

It has been over a year since the invasion of Earth was thwarted in Pittacus Lore's United as One. But in order to win, our alien allies known as the Garde unleashed their Loric energy that spread throughout the globe. Now human teenagers have begun to develop incredible powers of their own, known as Legacies. To help these incredible and potentially dangerous individuals - and put the world at ease - the Garde have created an academy where they can train this new generation to control their powers.

Nothing quite prepared telepath Larry Greenberg for mind-to-mind contact with an alien. In the interest of science, Larry tapped the mind of Kzanol - and that was his first mistake. Kzanol was a thrint from a distant galaxy. He had been trapped on Earth in a time-stasis field for two billion years. Now he was on the loose, and Larry knew everything he was thinking. Thrints lived to plunder and enslave lesser planets - and what the planet Kzanol had in mind was Earth!

Amelia Lockheart can't walk, but she can fly. As the armored superhero - Arsenal, she has the power of a small army at her disposal. Fourteen years ago her parents disappeared after a horrific wreck which left her wheelchair bound. With thieves salivating to steal her armor, and supervillains trying to kill her, Amelia must learn to trust her new team if she wants to survive long enough to learn the truth.