Chess has always been the protector over his younger siblings, Emma loves math, and Finn does what Finn does best - acting silly and being adored. They’ve been a happy family, just the three of them and their mom. But everything changes when reports of three kidnapped children reach the Greystone kids, and they’re shocked by the startling similarities between themselves and these complete strangers. The other kids share their same first and middle names. They’re the same ages. They even have identical birthdays. Who, exactly, are these strangers?

No matter what anyone tells you, I’m real. That’s what the note says that Max finds under his keyboard. He knows that his best friend, Josie, wrote it. He’d know her handwriting anywhere. But why she wrote it - and what it means - remains a mystery. Ever since they met in kindergarten, Max and Josie have been inseparable. Until the summer after fifth grade, when Josie disappears, leaving only a note, and whispering something about “whatnot rules”. But why would Max ever think that Josie wasn’t real? And what are whatnots?

Max loves stories, especially the fantastical tale Buelo tells him about a mystical gatekeeper who can guide brave travellers on a journey into tomorrow. If Max could see tomorrow, he would know if he'd make Santa Maria's celebrated fútbol team, and whether he'd ever find his mother, who left when he was a baby. Papa refuses to talk about her, so Max has learned to stop asking. But when Papa is forced to reveal his involvement in an underground network of guardians that led people fleeing a neighboring country to safety, everything Max knew about himself and his family is upended.

The first time I heard about Planet Choom, we'd been on Mars for almost a year. But life on the Mars station was grim, and since Earth was no longer an option (we may have blown it up), it was time to find a new home. That's how we ended up on Choom with the Zhuri. They're very smart. They also look like giant mosquitos. But that's not why it's so hard to live here. The Zhuri don't like us. And if humankind is going to survive, it's up to my family to change their minds. No pressure.

Luke Garner has spent his entire life - all 12 years - in hiding. The government has outlawed families with more than two children. As the Garners' third child, Luke's very life is in danger. When Luke meets Jen, another "shadow child," he begins to question the government's policies.

In the snowy kingdom of Erkenwald, whales glide between icebergs, wolves hunt on the tundra and polar bears roam the glaciers. But the people of this land aren’t so easy to find - because Erkenwald is ruled by an evil Ice Queen, and the tribes must stay hidden or risk becoming her prisoners at Winterfang Palace. Join Eska, a girl who breaks free from a cursed music box, and Flint, a boy whose inventions could change the fate of Erkenwald forever, as they journey to the Never Cliffs and beyond.

With the same heightened suspense and intrigue that made her Shadow Children,/i> books - including Among the Hidden - best-sellers, acclaimed young adult author Margaret Peterson Haddix presents the first entry in a thrilling new series. Thirteen years ago, a plane materialized out of thin air with 36 babies on board and no one at the controls. Jonah and Chip, passengers of that mysterious vessel, are now caught in the middle of a deadly struggle between the FBI and a sinister, unseen force.

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.

There used to be an empty chair at the back of Mrs. Khan's classroom, but on the third Tuesday of the school year a new kid fills it: nine-year-old Ahmet, a Syrian refugee. The whole class is curious about this new boy - he doesn't seem to smile, and he doesn't talk much. But after learning that Ahmet fled a very real war and was separated from his family along the way, a determined group of his classmates bands together to concoct the greatest idea in the world - a magnificent plan to reunite Ahmet with his loved ones.  

Josie O’Malley does a lot to help out Mam after her father goes off to fight the Nazis, but she wishes she could do more - like all those caped heroes who now seem to have disappeared. If Josie can’t fly and control weather like her idol, Zenobia, maybe she can put her math smarts to use cracking puzzles for the government. After an official tosses out her puzzler test because she’s a girl, it soon becomes clear that an even more top-secret agency has its eye on Josie, along with two other applicants: Akiko and Mae.

How far will a mother go to save her family? The Hammond family is living in DC, where everything seems to be going just fine until it becomes clear that the oldest daughter, Tilly, is developing abnormally - a mix of off-the-charts genius and social incompetence. Once Tilly - whose condition is deemed undiagnosable - is kicked out of the last school in the area, her mother, Alexandra, is out of ideas. The family turns to Camp Harmony and the wisdom of child-behavior guru Scott Bean for a solution.

Abbi Hope Goldstein is like every other teenager, with a few smallish exceptions: Her famous alter ego, Baby Hope, is the subject of internet memes, she has asthma, and sometimes, people spontaneously burst into tears when they recognize her. Abbi has lived almost her entire life in the shadow of the terrorist attacks of September 11. On that fateful day, she was captured in what became an iconic photograph: In the picture, Abbi (aka "Baby Hope") wears a birthday crown and grasps a red balloon; just behind her, the South Tower of the World Trade Center is collapsing.  

The city of Ember was built as a last refuge for the human race. Two hundred years later, the great lamps that light the city are beginning to flicker. When Lina finds part of an ancient message, she's sure it holds a secret that will save the city. She and her friend Doon must decipher the message before the lights go out on Ember forever! This stunning debut novel offers refreshingly clear writing and fascinating, original characters.

Morrigan Crow is cursed. Having been born on Eventide, the unluckiest day for any child to be born, she's blamed for all local misfortunes, from hailstorms to heart attacks - and, worst of all, the curse means that Morrigan is doomed to die at midnight on her 11th birthday. But as Morrigan awaits her fate, a strange and remarkable man named Jupiter North appears. Chased by black-smoke hounds and shadowy hunters on horseback, he whisks her away into the safety of a secret, magical city called Nevermoor.

As the son of the world’s most famous tech billionaire, spoiled Jett Baranov has always gotten what he wanted. So when his father’s private jet drops him in the middle of the Arkansas wilderness, at a place called the Oasis, Jett can’t believe it. He’s forced to hand over his cell phone, eat grainy veggie patties, and participate in wholesome activities with the other kids, who he has absolutely no interest in hanging out with.