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 MI6 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world. When they’re not attending the local boarding school, they’re honing their unique skills, such as sleight of hand, breaking and entering, observation, and explosives. All of these allow them to go places in the world of espionage where adults can’t. Before she knows what she’s doing, Sarah is heading to Paris for an international youth summit, hacking into a rival school’s computer to prevent them from winning a million euros, dangling thirty feet off the side of a building, and trying to stop a villain…all while navigating the complex dynamics of her new team. No one said saving the world was easy…

    Twelve-year-old Arcturus Betelgeuse Chambers' quest to find life on other planets seems at an end when his parents decide to move to Las Vegas, but while they look for a house he stays with his neighbor, an astronaut who soon becomes a friend.

    Not since it was burned to a cinder by the sun, which has mysteriously begun the process of going supernova. The human race has fled to Mars, but this was only a temporary solution while we prepare for a second trip: a one-hundred-fifty-year journey to a distant star, our best guess at where we might find a new home.Liam Saunders-Chang is one of the last humans left on Mars. The son of two scientists who have been racing against time to create technology vital to humanity’s survival, Liam, along with his friend Phoebe, will be on the very last starliner to depart before Mars, like Earth before it, is destroyed.Or so he thinks. Because before this day is over, Liam and Phoebe will make a series of profound discoveries about the nature of time and space, and find out that the human race is just one of many in our universe locked in a desperate struggle for survival.

    But Daniel doesn't have a normal life. He is the protector of the earth, the Alien Hunter, with a mission beyond anyone's imagining.Now the fate of the world rests on Daniel XFrom the day that his parents were brutally murdered before his very eyes, Daniel has used his unique gifts to hunt down their assassin. Finally, with the help of The List, bequeathed to him in his parents' dying breath, he is closing in on the killer.Now, on his own, he vows to take on his father's mission - and to take vengeance in the process.

    Before they know it, the two find themselves at the center of an international art scandal, where no one — neighbors, parents, teachers — is spared from suspicion. As Petra and Calder are drawn clue by clue into a mysterious labyrinth, they must draw on their powers of intuition, their problem-solving skills, and their knowledge of Vermeer. Can they decipher a crime that has left even the FBI baffled?

    A shadow fox, spirit and animal in one. From the minute the cub opens her eyes, she senses something very wrong. Someone—Jules.Jules: steadfast like their father.Jules: supreme maker of tiny snow foxes.Jules: collector of rocks.Jules: heartbroken.Who is this Jules? Who is this Sylvie she cries out for? And why does the air still prickle with something unsettled? As that dark unknown grows, the fates of the girl Jules and the fox cub, laced together with wishes and shadowy ties, are about to collide.

    Then things start to get really weird: One by one, her classmates at school turn into zombie-like, hollow-eyed Zeroes. While Suee investigates why this is happening, her shadow gains power. Soon, Suee must confront a stunning secret that her shadow has been hiding under her own two feet—something very dark and sinister that could put Suee and her newfound friends at risk!

    He used to do brave things like go tramping through the forest with his gran after dark. He loved the stories she told him about the world before the Destruction--about nature, and books, and the silver owls. His favorite story, though, was about the Owl Keeper. According to Max's gran, in times of darkness the Owl Keeper would appear to unite owls and sages against the powers of the dark. Gran is gone now, and so are her stories of how the world used to be. Max is no longer brave. The forest is dangerous, the books Gran had saved have been destroyed, and the silver owls are extinct. At least that's what the High Echelon says. But Max knows better. Maxwell Unger has a secret. And when a mysterious girl comes to town, he might just have to start being brave again. The time of the Owl Keeper, Gran would say, is coming soon.

    In a few months, he’s going to die.One MissionJack needs to find seven magic loculi that, when combined, have the power to cure him.One ProblemThe loculi are the relics of a lost civilization and haven’t been seen in thousands of years.Seven WondersBecause they’re hidden in the Seven Wonders of the Ancient World.

    With the help of cutting-edge science, their nerdy qualities are enhanced and transformed into incredible abilities. They battle the Hyena, a former junior beauty pageant contestant turned assassin, and an array of James Bond–style villains, each with an evil plan more diabolical and more ridiculous than the last.

    His mom is stressed out about her jobs. But Mars refuses to give up--after all, his own dad disappeared when Mars was a toddler, before he and Ma moved to Puget Sound from India. Luckily, Mars has a group of loyal friends eager to help--smart Toothpick, strong and stylish JP, and maybe-telepathic Caddie. The clues seem to point toward eccentric tech genius (and Mars's hero) Oliver Pruitt, whose popular podcast now seems to be commenting on their quest! But when the friends investigate Pruitt's mysterious, elite school, nothing is as it seems--and anyone could be deceiving them. Slick science, corporate conspiracies, and an endearingly nerdy protagonist make this a fresh, exciting sci-fi adventure.

    Together, they are able to bring art to life and enter paintings at will. Their extraordinary abilities are highly sought after, particularly by a secret group who want to access the terrors called Hollow Earth. All the demons, devils, and evil creatures ever imagined are trapped for eternity in the world of Hollow Earth—trapped unless special powers release them.The twins flee from London to a remote island off the west coast of Scotland in hopes of escaping their pursuers and gaining the protection of their grandfather, who has powers of his own. But the villains will stop at nothing to find Hollow Earth and harness the powers within. With so much at stake, nowhere is safe—and survival might be a fantasy.

    She has no idea how she got there or what her purpose is--but she knows she needs to survive. After battling a violent storm and escaping a vicious bear attack, she realizes that her only hope for survival is to adapt to her surroundings and learn from the island's unwelcoming animal inhabitants.As Roz slowly befriends the animals, the island starts to feel like home--until, one day, the robot's mysterious past comes back to haunt her.From bestselling and award-winning author and illustrator Peter Brown comes a heartwarming and action-packed novel about what happens when nature and technology collide.

    They each possess a "savvy" -a special supernatural power that strikes when they turn thirteen. Grandpa Bomba moves mountains, her older brothers create hurricanes and spark electricity . . . and now it's the eve of Mibs's big day. As if waiting weren't hard enough, the family gets scary news two days before Mibs's birthday: Poppa has been in a terrible accident. Mibs develops the singular mission to get to the hospital and prove that her new power can save her dad. So she sneaks onto a salesman's bus . . . only to find the bus heading in the opposite direction. Suddenly Mibs finds herself on an unforgettable odyssey that will force her to make sense of growing up-and of other people, who might also have a few secrets hidden just beneath the skin.

    But he's got a good reason: summer is when his single mom takes a second job and leaves him at home to watch his autistic kid sister, Maddy. It's a lot of responsibility, and it's boring, too, because Maddy doesn't talk. Ever. But then, one day at the flea market, Maddy does talk—to tell Jack to trade their mom's car for a box of mysterious seeds. It's the best mistake Jack has ever made.What starts as a normal little garden out back behind the house quickly grows up into a wild, magical jungle with tiny onion babies running amok, huge, pink pumpkins that bite, and, on one moonlit night that changes everything…a dragon.