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.

    But he does know that one special talent will aid him on his journey - his amazing ability to speak Cat. Charlie calls on his clever feline friends-from stray city cats to magnificent caged lions-for help. With them by his side, Charlie uses wit and courage to try to find his parents before it's too late.

    Readers who loved Percy Jackson will be eager to follow our heroes on this six-book, six-novella journey and excited to enter a sweepstakes to participate in a real-life scavenger hunt hosted by Tony Abbott that lets the reader become part of the story.It all began when four friends-Wade, Lily, Darrel, and Becca-received a strange, coded email from Wade's uncle Henry shortly before the old man's sudden death. They set off for Germany to attend the funeral with Wade's father, Roald, and discover that Uncle Henry left them yet another baffling message that they suspect is the key to figuring out how and why he died.The message leads to a clue, and the more clues they discover, the farther they travel down a treacherous path toward an ancient, guarded secret. Soon they are in a breathless race across the globe, running for their lives as a dangerous shadow organization chases them around every corner. Their only hope of saving themselves-and the world that they know-is to find twelve magical relics from a hidden past that will unlock the Copernicus Legacy.

    Using their wits and their growing prowess with coding, Hopper and her friend Eni are going to solve the mystery of Stately Academy no matter what it takes!From graphic novel superstar (and high school computer programming teacher) Gene Luen Yang comes a wildly entertaining new series that combines logic puzzles and basic programming instruction with a page-turning mystery plot!

    A found cipher. A game begins . . . .Twelve-year-old Emily is on the move again. Her family is relocating to San Francisco, home of her literary idol: Garrison Griswold, creator of the online sensation Book Scavenger, a game where books are hidden all over the country and clues to find them are revealed through puzzles. But Emily soon learns that Griswold has been attacked and is in a coma, and no one knows anything about the epic new game he had been poised to launch. Then Emily and her new friend James discover an odd book, which they come to believe is from Griswold and leads to a valuable prize. But there are others on the hunt for this book, and Emily and James must race to solve the puzzles Griswold left behind before Griswold's attackers make them their next target.

    Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time. Now, with the help of some very strange people and even stranger creatures, Otto and Sheed will have to put aside their differences to save their town—and each other—before time stops for good.

    We weren't even meant to be outside, not in a blackout, and definitely not when German bombs had been falling on London all month like pennies from a jar.*WINNER* BOOKS ARE MY BAG MIDDLE GRADE BOOK OF THE YEAR 2017*WINNER* LEEDS BOOK AWARDS 2018WATERSTONES CHILDREN'S BOOK OF THE MONTH MAY 2017THE BOOKSELLER EDITOR'S 9-12 PICK OF THE MONTHTHE TIMES CHILDREN'S BOOK OF THE WEEKFebruary, 1941. After months of bombing raids in London, twelve-year-old Olive Bradshaw and her little brother Cliff are evacuated to the Devon coast. The only person with two spare beds is Mr Ephraim, the local lighthouse keeper. But he's not used to company and he certainly doesn't want any evacuees.Desperate to be helpful, Olive becomes his post-girl, carrying secret messages (as she likes to think of the letters) to the villagers. But Olive has a secret of her own. Her older sister Sukie went missing in an air raid, and she's desperate to discover what happened to her. And then she finds a strange coded note which seems to link Sukie to Devon, and to something dark and impossibly dangerous.

    Sal is in the principal's office for the third time in three days, and it's still the first week of school. Gabi, student council president and editor of the school paper, is there to support her friend Yasmany, who just picked a fight with Sal. She is determined to prove that somehow, Sal planted a raw chicken in Yasmany's locker, even though nobody saw him do it and the bloody poultry has since mysteriously disappeared. Sal prides himself on being an excellent magician, but for this sleight of hand, he relied on a talent no one would guess . . . except maybe Gabi, whose sharp eyes never miss a trick. When Gabi learns that he's capable of conjuring things much bigger than a chicken--including his dead mother--and she takes it all in stride, Sal knows that she is someone he can work with. There's only one slight problem: their manipulation of time and space could put the entire universe at risk. A sassy entropy sweeper, a documentary about wedgies, a principal who wears a Venetian bauta mask, and heaping platefuls of Cuban food are just some of the delights that await in this mind-blowing novel gift-wrapped in love and laughter.

    The work was hard, thankless and brutally dangerous. Eleven-year-old Nan Sparrow is quite possibly the best climber who ever lived--and a girl. With her wits and will, she's managed to beat the deadly odds time and time again. But when Nan gets stuck in a deadly chimney fire, she fears her time has come. Instead, she wakes to find herself in an abandoned attic. And she is not alone. Huddled in the corner is a mysterious creature--a golem--made from ash and coal. This is the creature that saved her from the fire. Sweep is the story of a girl and her monster. Together, these two outcasts carve out a life together--saving one another in the process.

    Nere has never understood why she is so much more comfortable and confident in the water than on land until the day she learns the shocking truth—she is one of a group of kids who have been genetically altered to survive in the ocean. These products of the "Neptune Project" are supposed to build a better future under the waves, safe from the terrible famines and wars and that rock the surface world.But there are some big challenges ahead of her: no one ever asked Nere if she wanted to be part of a science experiment; the other Neptune kids aren't exactly the friendliest bunch, and in order to reach the safe haven of the new Neptune colony, Nere and her fellow mutates must swim across hundreds of miles of dangerous ocean, relying on their wits, their loyal dolphins and one another to evade terrifying undersea creatures and a government that will stop at nothing to capture the Neptune kids ... dead or alive.

    But everything changes when she catches two brutish sailors ransacking Lord Vidalia's study, and then follows a mysterious girl with wings out into the night....Suddenly, Honorine is whisked into the middle of a battle between the crew of a spectacular steamship and a band of mythical constellations. The stars in the sky have come to life to defend themselves against those who want to harness their powers. Much to her surprise, Honorine is the crux of it all, the center of an epic clash between magic and science, the old ways and the new. But can this spirited young girl bring both sides of a larger-than-life fight together before they unleash an evil power even older than the stars?

    The star is Virgo - a young Zodiac goddess on a mission. But the pair accidentally release Thanatos, a wicked death daemon imprisoned beneath Stonehenge, and must then turn to the old Olympian gods for help. After centuries of cushy retirement on earth, are Zeus and his crew up to the task of saving the world - and solving Elliot's problems too?

    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?

    Etheldreda's from attempting to hide the death of their headmistress in this rollicking farce. The students of St. Etheldreda's School for Girls face a bothersome dilemma. Their irascible headmistress, Mrs. Plackett, and her surly brother, Mr. Godding, have been most inconveniently poisoned at Sunday dinner. Now the school will almost certainly be closed and the girls sent home—unless these seven very proper young ladies can hide the murders and convince their neighbors that nothing is wrong. The Scandalous Sisterhood of Prickwillow Place is a smart, hilarious Victorian romp, full of outrageous plot twists, mistaken identities, and mysterious happenings.

    After a mysterious incident leaves Griffin close to death, Effie is given an unusual silver ring and told she must look after her grandfather’s library of rare and powerful books. But then the books fall into the hands of shady scholar Leonard Levar, and Effie is propelled into the most dangerous adventure of her life.Now, Effie and her friends—nerdy Maximilian, rugby-mad Wolf, helpful Lexy, and eccentric Raven—must discover their true powers if they are to get the books back. And Effie alone will have to travel to the Otherworld, where she will uncover the true meaning of the strange old book called Dragon’s Green…