L. Konisburg, this middle-grade mystery adventure is inspired by the real life of Viviani Joffre Fedeler, born and raised in the New York Public Library.Eleven-year-old Viviani Fedeler has spent her whole life in the New York Public Library. She knows every room by heart, except the ones her father keeps locked. When Viviani becomes convinced that the library is haunted, new girl Merit Mubarak makes fun of her. So Viviani decides to play a harmless little prank, roping her older brothers and best friend Eva to help out.But what begins as a joke quickly gets out of hand, and soon Viviani and her friends have to solve two big mysteries: Is the Library truly haunted? And what happened to the expensive new stamp collection? It's up to Viviani, Eva, and Merit (reluctantly) to findout.

    With time running out, Christopher must use every skill he’s learned to discover the key to a terrible secret with the power to tear the world apart.

    But he is wrong. Uncle Jonathan and his next-door neighbor, Mrs. Zimmermann, are both magicians! Lewis is thrilled. At first, watching magic is enough. Then Lewis experiments with magic himself and unknowingly resurrects the former owner of the house: a woman named Selenna Izard. It seems that Selenna and her husband built a timepiece into the walls—a clock that could obliterate humankind. And only the Barnavelts can stop it!

    True, there were no other recorded female survivors from the shipwreck which left baby Sophie floating in the English Channel in a cello case, but Sophie remembers seeing her mother wave for help. Her guardian tells her it is almost impossible that her mother is still alive, but that means still possible. You should never ignore a possible. So when the Welfare Agency writes to her guardian threatening to send Sophie to an orphanage, she takes matters into her own hands and flees to Paris to look for her mother, starting with the only clue she has - the address of the cello maker. Evading the French authorities, she meets Matteo and his network of rooftoppers - urchins who live in the sky. Together they scour the city for Sophie's mother before she is caught and sent back to London, and most importantly before she loses hope.

    Clair is going to be a lawyer. She was the fastest girl in New York City. She knows everything there is to know about the brain. And now that she’s living in Crow, Iowa, she wants to ride into her first day of school on a cow named Willowdale Princess Deon Dawn. But Gwyn isn’t in Crow, Iowa, just for royal cows. Her family has moved there, where her parents grew up, in the hopes of jogging her mother Vienna’s memory. Vienna has been suffering from memory loss since Gwyn was four. She can no longer remember anything past the age of thirteen, not even that she has two young daughters. Gwyn’s father is obsessed with finding out everything he can to help his wife, but Gwyn’s focused on problems that seem a little more within her reach. Like proving that the very strange Gaysie Cutter who lives next door is behind the disappearance of her only friend, Wilbur Truesdale. Gwyn is sure she can crack the case, but when she does she finds that not all of her investigations lead her to the places she would have expected. In fact they might just lead her to learn about the mother she’s been doing her best to forget.

    The next minute, the teens are gone. Like magic. Marin can’t believe her eyes. Who are they? Can anyone else see them? What makes them so happy?Marin is lonely in this new town of hers and eager to figure out more. Then she meets Charley, who reveals that he knows about them, too.He calls them the “Remarkables.” Charley warns her to stay away from the Remarkables—and him. Charley and Marin both have painful secrets they’re holding on to, but could solving the mystery of the Remarkables help them both?In addition to building an intriguing world filled with mystery, Haddix also grounds the story with real issues that many children face. Characters deal with the complexities of bullying, the guilt children experience when parents have addiction issues, and the uplifting power found in strong families of all shapes and sizes.

    Her father, an expert on the supernatural, has been away for too long while doing research in Saarthe, a remote territory in the Pacific Northwest populated by towering redwoods, timber barons, and the Lupine people. But upon arriving, she learns her father is missing: Rumor has it he’s gone in search of dreamwood, a rare tree with magical properties that just might hold the cure for the blight that’s ravaging the forests of Saarthe.Determined to find her father (and possibly save Saarthe), Lucy and her vexingly stubborn friend Pete follow William Darrington’s trail to the deadly woods on Devil’s Thumb. As they encounter Lupine princesses, giant sea serpents, and all manner of terrifying creatures, Lucy hasn’t reckoned that the dreamwood itself might be the greatest threat of all.

    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.

    The creaky smuggler’s inn is always quiet during this season, and twelve-year-old Milo, the innkeepers’ adopted son, plans to spend his holidays relaxing. But on the first icy night of vacation, out of nowhere, the guest bell rings. Then rings again. And again. Soon Milo’s home is bursting with odd, secretive guests, each one bearing a strange story that is somehow connected to the rambling old house. As objects go missing and tempers flare, Milo and Meddy, the cook’s daughter, must decipher clues and untangle the web of deepening mysteries to discover the truth about Greenglass House—and themselves.

    McMartin is definitely dead. Now her crumbling Victorian mansion lies vacant. When eleven-year-old Olive and her dippy mathematician parents move in, she knows there's something odd about the place--not least the walls covered in strange antique paintings. But when Olive finds a pair of old spectacles in a dusty drawer, she discovers the most peculiar thing yet: She can travel inside these paintings to a world that's strangely quiet . . . and eerily like her own. Yet Elsewhere harbors dark secrets--and Morton, an undersized boy with an outsize temper. As she and Morton form an uneasy alliance, Olive finds herself ensnared in a plan darker and more dangerous than she could have imagined, confronting a power that wants to be rid of her by any means necessary. It's up to Olive to save the house from the dark shadows, before the lights go out for good.

    Now Mom and Dad are moving the family from Brooklyn to Maine hoping that it will mean a  whole new start for Lucca and Siena. She soon realizes that their wonderful old house on the beach holds secrets. When Siena writes in her diary with an old pen she found in her closet, the pen writes its own story, of Sarah and Joshua, a brother and sister who lived in the same house during World War II. As the two stories unfold, amazing parallels begin to appear, and Siena senses that Sarah and Joshua's story might contain the key to unlocking Lucca's voice.

    But even though his name is Hoodoo, he can't seem to cast a simple spell. Then a mysterious man called the Stranger comes to town, and Hoodoo starts dreaming of the dead rising from their graves. Even worse, he soon learns the Stranger is looking for a boy. Not just any boy. A boy named Hoodoo. The entire town is at risk from the Stranger’s black magic, and only Hoodoo can defeat him. He’ll just need to learn how to conjure first. Set amid the swamps, red soil, and sweltering heat of small town Alabama in the 1930s, Hoodoo is infused with a big dose of creepiness leavened with gentle humor.

    When Larissa Renaud starts receiving eerie phone calls on a disconnected old phone in her family's antique shop, she knows she's in for a strange summer. A series of clues leads her to the muddy river banks, where clouds of fireflies dance among the cypress knees and cattails each evening at twilight. The fireflies are beautiful and mysterious, and they take her on a magical journey through time, where Larissa learns secrets about her family's tragic past--deadly, curse-ridden secrets that could harm the future of her family as she knows it. It soon becomes clear that it is up to Larissa to prevent history from repeating itself and a fatal tragedy from striking the people she loves. With her signature lyricism, Kimberley Griffiths Little weaves a thrilling tale filled with family secrets, haunting mystery, and dangerous adventure.

    The sun rises in a sky filled with dancing shapes; the wind, water, and trees shelter and protect those who live there; when the nine children go to sleep in their cabins, it is with full stomachs and joy in their hearts. And only one thing ever changes: on that day, each year, when a boat appears from the mist upon the ocean carrying one young child to join them—and taking the eldest one away, never to be seen again.Today’s Changing is no different. The boat arrives, taking away Jinny’s best friend, Deen, replacing him with a new little girl named Ess, and leaving Jinny as the new Elder. Jinny knows her responsibility now—to teach Ess everything she needs to know about the island, to keep things as they’ve always been. But will she be ready for the inevitable day when the boat will come back—and take her away forever from the only home she’s known?

    At first he is thrilled with his new treasure, but as one secret leads to another, Reuben finds himself torn between his innately honest nature and the lure to be a hero.Now he is on a dangerous adventure--full of curious characters, treacherous traps, and hairsbreadth escapes--as he races to solve the mystery before it is too late. Even with fearless Penny, mighty Jack, and the wise Mrs. Genevieve on his side, can Reuben outwit and outmaneuver the sly villain called The Smoke and his devious defenders the Directions and save the city from a terrible fate?In this ingeniously crafted novel, acclaimed New York Times bestselling author Trenton Lee Stewart invites readers to join the adventure, decipher the clues, and ask themselves the question: Is knowing a secret a gift or a curse?