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.

    And his football strip. And his school blazer. But being super-sized height-wise has its advantages: he's the only eleven-year-old to ever ride the G-force defying Cosmic rollercoaster - or be offered the chance to drive a Porsche. Long-legged Liam makes a giant leap for boy-kind by competing with a group of adults for the chance to go into space. Is Liam the best boy for the job? Sometimes being big isn't all about being a grown-up.

    Mourning his late mother, Tommy doesn't notice much about the chain he found, but soon he is drawing the twin suns and humming the music of a hanorah. As Tommy absorbs the art and language of the Valorim, their enemies target him. When a creature begins ransacking Plymouth in search of the chain, Tommy learns he must protect his family from villains far worse than he's ever imagined.

    He's excited to be accepted into a special program at the Sentia Institute -- but when he realizes he's in over his head, Jackson will have to find a way to use his powers to save his friends, his parents, and his government.

    Each message brings her closer to believing that only she can prevent a tragic death. Until the final note makes her think she’s too late.

    The Italian resistance movement has not given up hope, though — and neither have thirteen-year- old Paolo and his sister, Costanza. As their mother is pressured into harboring escaping POWs, Paolo and Costanza each find a part to play in opposing the German forces. Both are desperate to fight the occupation, but what can two siblings — with only a bicycle to help them — do against a whole army? Middle-grade fans of history and adventure will be riveted by the action and the vividly evoked tension of World War II.

    With the help of her best friend, Charlie, and his grandpa Josh, Margaret goes back to a time when Judge Biggs was a young boy and tries to prevent the chain of events that transformed him into a corrupt, jaded man.

    With a little help from her notoriously cantankerous grandfather, an avid naturalist, she figures out that the green grasshoppers are easier to see against the yellow grass, so they are eaten before they can get any larger.As Callie explores the natural world around her, she develops a close relationship with her grandfather, navigates the dangers of living with six brothers, and comes up against just what it means to be a girl at the turn of the century.Debut author Jacqueline Kelly deftly brings Callie and her family to life, capturing a year of growing up with unique sensitivity and a wry wit.

    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.

    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. First stop: Spain, 1492, where a sailor named Christopher Columbus is about to be thrown overboard in a deadly mutiny!

    But he dives after friends whisked away to The Outskirts.The five kingdoms lie in between - wakefulness and dreaming, reality and imagination, life and death. Some people are born there. Some find their way there from other worlds.And once people are in the Outskirts, they find it very hard to leave.With the magic of the Outskirts starting to unravel, Cole and an unusual girl named Mira must rescue his friends, set things right in the Outskirts, and hopefully find his way back home…before his existence is forgotten.

    REALLY big things.But life doesn't always go your way just because you're awesome.Trouble always seems to find him, but Nate keeps his cool no matter what.He knows he's great. A fortune cookie told him so.For fans of the hilarious Diary of a Wimpy Kid series: Here comes BIG NATE, accidental mischief maker and definitely NOT the teacher's pet.

    Snowed in together at a chaotic Washington D.C. airport, they encounter a mysterious tattooed man, a flamboyant politician, and a rambunctious poodle named for an ancient king. Even stranger, news stations everywhere have announced that the famous flag that inspired "The Star-Spangled Banner" has been stolen! Anna, certain that the culprits must be snowed in too, recruits Henry and José to help catch the thieves and bring them to justice.But when accusations start flying, they soon realize there's more than justice at stake. As the snow starts clearing, Anna, José, and Henry find themselves in a race against time (and the weather!) to prevent the loss of an American treasure.

    Twelve-year-old orphan Max Einstein (like Albert Einstein himself) is not your typical genius. Max hacks the computer system at NYU in order to attend college courses (even though she hates tests), builds homemade inventions to help the homeless, and plays speed chess in the park. Her not-so-normal life is crazy but predictable until...Max is recruited by a mysterious organization! Their mission: solve some of the world's toughest problems using science. She's helped by a diverse group of young geniuses from around the globe as they invent new ways to power the farthest reaches of the planet. But that's only if the sinister outfit known only as The Corporation doesn't get to her first...Max Einstein is a heroine for the modern age and will be looked up to by readers for generations to come.

    Newton. Salk. Oppenheimer.Science can change the world . . . but can it go too far? Eleven-year-old Ellie has never liked change. She misses fifth grade. She misses her old best friend. She even misses her dearly departed goldfish. Then one day a strange boy shows up. He’s bossy. He’s cranky. And weirdly enough . . . he looks a lot like Ellie’s grandfather, a scientist who’s always been slightly obsessed with immortality. Could this pimply boy really be Grandpa Melvin? Has he finally found the secret to eternal youth?Lexile recommendation: 550