This world is on the brink of war, and Gregor's arrival is no accident. A prophecy foretells that Gregor has a role to play in the Underland's uncertain future. Gregor wants no part of it -- until he realizes it's the only way to solve the mystery of his father's disappearance. Reluctantly, Gregor embarks on a dangerous adventure that will change both him and the Underland forever.

    He wasn't wearing his seatbelt, they said. But when fourteen-year-old Alex finds his uncle's windshield riddled with bullet holes, he knows it was no accident. What he doesn't know yet is that his uncle was killed while on a top-secret mission. But he is about to, and once he does, there is no turning back. Finding himself in the middle of terrorists, Alex must outsmart the people who want him dead. The government has given him the technology, but only he can provide the courage. Should he fail, every child in England will be murdered in cold blood.

    But when the confused and curious boy discovers that a mysterious virus is spreading through town, he decides to enter an otherworldly house to stop it. After meeting Suzy Blue and the first part of "the Will" (a frog-looking entity that knows everything about the House), Arthur learns that he's been selected as Rightful Heir to the House and must get the other part of the clock hand in order to defeat Monday. That means getting past Monday's henchmen and journeying to the Dayroom itself. Thankfully, Arthur is up to the challenge, but as he finds out, his fight seems to be only one-seventh over.With a weapon-wielding hero and a villain who doesn't make Mondays any nicer, Nix's Keys to the Kingdom launch is imaginative and gripping. After an action-packed crescendo to the book's middle -- when Arthur finally learns his destiny -- Nix keeps the drama going and doesn't let it fall. By the end, you might be winded from all the fantastic explanation, but you'll definitely be salivating for what's to come.

    After their parents are lost in an accident, thirteen-year old twins Grace and Marty are whisked away to live with their Uncle Wolfe-an uncle that they didn't even know they had! The intimidating Uncle Wolfe is an anthropologist who has dedicated his life to finding cryptids, mysterious creatures believed to be long extinct.

    He was the one who heard about the downed submarine. He was the one who thought we should check it out. And everyone knows that if Marco's up to a challenge, I'm definitely there.Everything was going fine. Until the explosion. An explosion that blows us millions of years back in time. Back to the age of dinosaurs. Now Tobias, Cassie, Marco, Ax, Jake and I are fighting for our lives with every step we take. But that's not our biggest problem. Our biggest problem is we have no idea how to get back to our own time. . . .

    When diphtheria strikes the village and the children of Clifton start dying, Jessie's mother sends her on a dangerous mission to bring back help. But beyond the walls of Clifton, Jessie discovers a world even more alien and threatening than she could have imagined, and soon she finds her own life in jeopardy. Can she get help before the children of Clifton, and Jessie herself, run out of time?

    But after Alfred unwittingly delivers the sword into the hands of a man with enormously evil intentions, he sets off on an unlikely quest to try to right his wrong and save the world from imminent destruction. This gripping, fast-paced, hilarious novel is both a thrilling adventure story and an engaging account of one boy's coming of age.

    For one thing, he has had to suffer the humiliating nickname "Half Moon" because of his short stature. But the real reason Fletcher is different is that ever since he was a baby, he's had a nose for sniffing out mysteries. And after graduating at the top of his Internet class, he is officially certified as the youngest detective in the world. He even has a silver-plated detective's badge to prove it. Everything is going along fine until two things happen: a classmate hires him to solve a crime, and his prized badge is stolen. All signs point to the town's most notorious crime family, the Sharkeys.As Fletcher follows the clues, evidence of a conspiracy begins to emerge. But before he can crack the case, Fletcher finds himself framed for a serious crime. To clear his name, he will have to pair up with the unlikeliest of allies and go on the run from the authorities. Fletcher has twelve hours to find the guilty party--or he is the guilty party.

    When their beloved aunt--matriarch of the world's most powerful family--dies, orphaned siblings Amy and Dan Cahill compete with less honorable Cahill descendants in a race around the world to find cryptic clues to a mysterious fortune.Book includes game cards which the reader may use to play an online version of the treasure hunt.

    Nearly seven hundred years later, he is acknowledged as the greatest Alchemyst of his day. It is said that he discovered the secret of eternal life. The records show that he died in 1418. But his tomb is empty and Nicholas Flamel lives. The secret of eternal life is hidden within the book he protects—the Book of Abraham the Mage. It's the most powerful book that has ever existed. In the wrong hands, it will destroy the world. And that's exactly what Dr. John Dee plans to do when he steals it. Humankind won't know what's happening until it's too late. And if the prophecy is right, Sophie and Josh Newman are the only ones with the power to save the world as we know it. Sometimes legends are true. And Sophie and Josh Newman are about to find themselves in the middle of the greatest legend of all time.

    He has a family, a home, and even Marley, his beloved dog. But there is something very special about Bobby.He is going to save the world.And not just Earth as we know it. Bobby is slowly starting to realize that life in the cosmos isn't quite what he thought it was. And before he can object, he is swept off to an alternate dimension known as Denduron, a territory inhabited by strange beings, ruled by a magical tyrant, and plagued by dangerous revolution.If Bobby wants to see his family again, he's going to have to accept his role as savior, and accept it wholeheartedly. Because, as he is about to discover, Denduron is only the beginning....Cover illustration by Victor Lee

    In fact, the only bond he shares with his eccentric father is a passion for archaeological excavation. So when his dad mysteriously vanishes, Will is compelled to dig up the truth behind his disappearance. He unearths the unbelievable: a subterranean society that time forgot. "The Colony" has existed unchanged for a century, but it's no benign time capsule of a bygone era. Because the Colony is ruled by a merciless overclass, the Styx. Will must free his father--is he also about to ignite a revolution?

    At seven, he was illegally hacking into computers. Now he's fourteen and studying for his World Domination degree, taking classes like embezzlement, misinformation, forgery, and infiltration at the institute founded by criminal mastermind Dr. Phineas Darkkon. Although Cadel may be advanced beyond his years, at heart he's a lonely kid. When he falls for the mysterious and brilliant Kay-Lee, he begins to question the moral implications of his studies for the first time. But is it too late to stop Dr. Darkkon from carrying out his evil plot?An engrossing thriller with darkness and humor, freaks and geeks, Evil Genius explores the fine line between good and evil in a strange world of manipulations and subterfuge where nothing is as it seems.

    Incredible. The superkids use their powers to secretly do good in the town, but they re haunted by the fact that the moment they turn thirteen, their abilities will disappear along with any memory that they ever had them. Is a memory-stealing supervillain sapping their powers? The answers lie in a long-ago meteor strike, a World War II era comic book ("Fantastic Futures, "starring the first superhero, Johnny Noble), the green-flamed Witch Fire, a hidden Shroud cave, and possibly, unbelievably powerless regular-kid Daniel himself. Superhero kids meet comic book mystery in this action-filled debut about the true meaning of a hero.

    Finn Whitman and four other teens have been hired as Disney World guides, but with an odd twist: With cutting-edge technology, they have been transformed into hologram projections capable of leading guests around the park. What begins as an exciting theme park job turns into a virtual nightmare as Finn and his pals attempt to thwart an uprising by a menacing group of Disney villains.