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

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.

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.

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?

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.

As the son of Hades, Nico di Angelo has been through so much, from the premature deaths of his mother and sister, to being outed against his will, to losing his friend Jason during the trials of Apollo. But there is a ray of sunshine in his life—literally: his boyfriend, Will Solace, the son of Apollo. Together the two demigods can overcome any obstacle or foe. At least, that's been the case so far . . . Now Nico is being plagued by a voice calling out to him from Tartarus, the lowest part of the Underworld.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

It is the morning of the reaping that will kick off the 10th annual Hunger Games. In the Capitol, 18-year-old Coriolanus Snow is preparing for his one shot at glory as a mentor in the Games. The once-mighty house of Snow has fallen on hard times, its fate hanging on the slender chance that Coriolanus will be able to out charm, outwit, and outmaneuver his fellow students to mentor the winning tribute. The odds are against him. He’s been given the humiliating assignment of mentoring the female tribute from District 12, the lowest of the low.

Jason has a problem. He doesn't remember anything before waking up on a school bus holding hands with a girl. Apparently she's his girlfriend Piper, his best friend is a kid named Leo, and they're all students in the Wilderness School, a boarding school for "bad kids." What he did to end up here, Jason has no idea—except that everything seems very wrong.

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.

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.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Agatha Christie's first two Poirot novels, narrated with a general-American accent. The Mysterious Affair at Styles: Someone has poisoned wealthy Emily Inglethorp. But who? And how? Everyone suspects Emily's young husband, Alfred...and Alfred seems to be actually trying to get arrested and charged.... The Murder on the Links: Poirot comes to France in response to a desperate plea for help to find his client already murdered - stabbed in the back and lying in an open grave. Brusque, arrogant Inspector Giraud thinks he knows who did it.

For centuries, mystical creatures of all description were gathered to a hidden refuge called Fablehaven to prevent their extinction. The sanctuary survives today as one of the last strongholds of true magic in a cynical world. Enchanting? Absolutely. Exciting? You bet. Safe? Well, actually, quite the opposite... Kendra and her brother Seth have no idea their grandfather is the current caretaker of Fablehaven.

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....

From 1501 to 1505, Leonardo da Vinci and Michelangelo Buonarroti both lived and worked in Florence. Leonardo was a charming, handsome 50-year-old at the peak of his career. Michelangelo was a temperamental sculptor in his mid-20s, desperate to make a name for himself. Michelangelo is a virtual unknown when he returns to Florence and wins the commission to carve what will become one of the most famous sculptures of all time: David.

A team of unlikely friends - an orphaned street musician, a hard-working girl from the tenements, and a talented clockmaker's apprentice - discover that together they can overcome even the darkest of fears.

Ketterdam: a bustling hub of international trade where anything can be had for the right price - and no one knows that better than criminal prodigy Kaz Brekker. Kaz is offered a chance at a deadly heist that could make him rich beyond his wildest dreams. But he can't pull it off alone.

When fragile 16-year-old Hope Walton loses her mom to an earthquake overseas, her secluded world crumbles. Agreeing to spend the summer in Scotland, Hope discovers that her mother was more than a brilliant academic but also a member of a secret society of time travelers. And she's alive, though currently trapped in the 12th century, during the age of Eleanor of Aquitaine. Hope has 77 hours to rescue her mother and get back to their own time.

The Seven Wonders adventures continue in this bind-up of The Select and The Orphan. The Select tells the story of thirteen-year-old Burt Wenders, the first documented carrier of the G7W gene, and his fated voyage to the island that would eventually come to house the Karai Institute. In The Orphan, learn the story of Daria, orphaned at a young age and enslaved by the Babylonians, and her valiant battle to escape the only city she's ever called home. These titles are together for the first time ever.

Sixteen years ago the Kingdom of Winter was conquered and its citizens enslaved, leaving them without magic or a monarch. Now the Winterians' only hope for freedom is the eight survivors who managed to escape, and who have been waiting for the opportunity to steal back Winter's magic and rebuild the kingdom ever since. Orphaned as an infant during Winter's defeat, Meira has lived her whole life as a refugee, raised by the Winterians' general, Sir.

When 17-year-old Kai is exposed as a female sorceress, a moonburner, she knows the punishment is death. Despite the odds against her, Kai escapes her fate and undertakes a harrowing journey to a land where moonburners are revered and trained as warriors. But the moonburner citadel is not the place of refuge and learning that Kai imagined.

On the day of her Presenting, in front of the entire Byern Court, 17-year-old Cyrene Strohm's lifelong plans come to fruition when she's chosen for one of the most prestigious positions in her homeland - an Affiliate to the Queen. Or so she thinks. When Cyrene receives a mysterious letter and an unreadable book, she finds nothing is as it seems.

After escaping a harsh school where punishment was the lesson of the day, 17-year-old Louisa Ditton is thrilled to find employment as a maid at a boardinghouse. But soon after her arrival at Coldthistle House, Louisa begins to realize that the house's mysterious owner, Mr. Morningside, is providing much more than lodging for his guests. Far from a place of rest, the house is a place of judgment, and Mr. Morningside and his unusual staff are meant to execute their own justice on those who are past being saved.

In the post-apocalyptic, neo-medieval city of Ark, speech is constrained to 500 sanctioned words. If somewhere were to speak outside that approved lexicon, they'd face banishment. The only exceptions to this rule are the Wordsmith and his apprentice, Letta. Together, they are the keepers and archivists of all language. But when Letta's master dies, she is suddenly promoted to Wordsmith and finds the situation more complicated than she knew.

Princess Aurelia is a prisoner to her crown and the heir that nobody wants. Surrounded by spirits and banned from using her blood-magic, Aurelia flees her country after a devastating assassination attempt. To escape her fate, Aurelia disguises herself as a commoner in a new land and discovers a happiness her crown has never allowed. As she forges new bonds and perfects her magic, she begins to fall for a man who is forbidden to rule beside her.

Discover the mysteries that led to the best-selling fantasy adventure that began with Raising Dragons. With heart-stopping fantasy action and clear spiritual insights, Eye of the Oracle will captivate young and old alike, and it will challenge every listener to search deep within for answers to the mysteries in their own hearts.

When Kara Magari uncovers a secret door in the middle of the forest, she discovers (and trips through) a portal to a hidden world full of terrifying things: Ourea. She just wants to go home, but the natives have other plans for her. She clashes with immortal shapeshifters, is carried off by a dragon, nearly dies on several occasions, and somehow becomes the master of an ancient book of magic called the Grimoire. Every time she thinks she's safe, her new "friends" show their true colors.

Everyone dreams of marrying a prince - except for me. I am nothing more than a pawn in my adoptive mother's diabolical plot against the seven kingdoms. I was the chosen tool, her sharpened blade that would cut the deepest into the heart of the kingdom of Baist. But like all deadly weapons, my wedding is two-edged sword that could cost me my soul. For I am Rosalie, one of the adopted daughters of Lady Eville, and it is my duty to enter into a loveless and hate-filled marriage with the narcissistic Crown Prince of Baist.

Benvenuto Cellini, master artisan of Renaissance Italy, once crafted a beautiful amulet prized for its unimaginable power - and untold menace. Now the quest to recover this legendary artifact depends upon one man: David Franco, a brilliant but skeptical young scholar at Chicago's world-renowned Newberry Library.