When first-class passenger Will Everett gets the key to a train car containing priceless treasures, he becomes the target of sinister figures from his past. To survive, Will joins a travelling circus, helped by ringmaster leader Mr. Dorian, and Maren, a girl his age and an expert escape artist.

    Here, fourteen-year-old Janie meets a mysterious apothecary and his son, Benjamin Burrows—a fascinating boy who’s not afraid to stand up to authority and dreams of becoming a spy. When Benjamin’s father is kidnapped, Janie and Benjamin must uncover the secrets of the apothecary’s sacred book, the Pharmacopoeia, in order to find him, all while keeping it out of the hands of their enemies—Russian spies in possession of nuclear weapons. Discovering and testing potions they never believed could exist, Janie and Benjamin embark on a dangerous race to save the apothecary and prevent impending disaster.

    But when a mysterious green violin enters his life he begins to imagine a life of freedom. Hannah is a soft-hearted, strong-willed girl from the tenements, who supports her family as a hotel maid when tragedy strikes and her father can no longer work. She learns about a hidden treasure, which she knows will save her family — if she can find it. And Frederick, the talented and intense clockmaker's apprentice, seeks to learn the truth about his mother while trying to forget the nightmares of the orphanage where she left him. He is determined to build an automaton and enter the clockmakers' guild — if only he can create a working head.Together, the three discover they have phenomenal power when they team up as friends, and that they can overcome even the darkest of fears.

    She is even more surprised when the test results come back positive, and she is sent to Attic Island, a former prison turned refuge—and quarantine colony—for the ill. The Scourge’s victims, Ani now among them, can only expect to live out short, painful lives there.However, Ani quickly discovers that she doesn’t know the whole truth about the Scourge or the Colony. She’s been caught in a devious plot, and, with the help of her best friend, Weevil, Ani means to uncover just what is actually going on. But will she and Weevil survive the Scourge—and the gorvernor’s wardens—long enough to make their escape and expose the cruel plan?

     Gideon Seymour, cutpurse and gentleman, hides from the villainous Tar Man. Suddenly the sky peels away like fabric and from the gaping hole fall two curious-looking children. Peter Schock and Kate Dyer have fallen straight from the twenty-first century, thanks to an experiment with an antigravity machine. Before Gideon and the children have a chance to gather their wits, the Tar Man takes off with the machine -- and Kate and Peter's only chance of getting home. Soon Gideon, Kate, and Peter are swept into a journey through eighteenth-century London and form a bond that, they hope, will stand strong in the face of unfathomable treachery.

    A family moves into an old, abandoned house. Jules's parents love the house, but Jules is frightened and feels a sense of foreboding. When she sees a pale face in an upstairs window, though, she can't stop wondering about the eerie presence on the top floor—in a room with a locked door. Could it be someone who lived in the house a century earlier? Her fear replaced by fascination, Jules is determined to make contact with the mysterious figure and help unlock the door. Past and present intersect as she and her ghostly friend discover—and change—the fate of the family who lived in the house all those many years ago.

    The place is New York City. Horace Carpetine has been raised to believe in science and rationality. So as apprentice to Enoch Middleditch, a society photographer, he thinks of his trade as a scientific art. But when wealthy society matron Mrs. Frederick Von Macht orders a photographic portrait, strange things begin to happen.Horace's first real photographs reveal a frightful likeness: it's the image of the Von Machts' dead daughter, Eleanora.Pegg, the Von Machts' black servant girl, then leads him to the truth about who Eleanora really was and how she actually died. Joined in friendship, Pegg and Horace soon realize that his photographs are evoking both Eleanora's image and her ghost. Eleanora returns, a vengeful wraith intent on punishing those who abused her.Rich in detail, full of the magic of early photography, here is a story about the shadows, visible and invisible, that are always lurking near.

    Silas is left shaken, scared, and alone, except for the presence of his companion, Mittenwool . . . who happens to be a ghost. When a pony shows up at his door, Silas makes the courageous decision to leave his home and embark on a perilous journey to find his father. Along the way, he will face his fears to unlock the secrets of his past and explore the unfathomable mysteries of the world around him.

    Nick and his younger sister, Kate, live in a lighthouse on the smallest of the Channel Islands. Nick and Kate come to the aid of their father who is engaged in a desperate war of espionage with German U-boat wolf packs that are circling the islands. The information they provide to Winston Churchill is vital as he tries to warn England of the imminent Nazi invasion.One day Nick discovers an old sea chest, left for him by his ancestor, Captain Nicholas McIver of the Royal Navy. Inside, he finds a time machine and a desperate plea for help from the captain. He uses the machine to return to the year 1805. Captain McIver and, indeed, Admiral Nelson's entire fleet are threatened by the treachery of the French and the mutinous Captain Billy Blood. Nick must reach deep inside, using his wits, courage, and daring to rescue the imperiled British sailors.His sister, Kate, meanwhile, has enlisted the aid of two of England's most brilliant "scientific detectives," Lord Hawke and Commander Hobbes, to thwart the invading Nazis. She and Nick must face England's underwater enemies, a challenge made all the more difficult when they discover the existence of Germany's supersecret submarine.In this striking adventure for readers of all ages, Nick must fight ruthless enemies across two different centuries, on land and sea, to help defeat those determined to destroy his home and his family.

    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.

    There’s plenty to explore in her grand home, although she must take care to never be seen. None of the rich folk upstairs know that Serafina exists; she and her pa, the estate’s maintenance man, have secretly lived in the basement for as long as Serafina can remember.But when children at the estate start disappearing, only Serafina knows who the culprit is: a terrifying man in a black cloak who stalks Biltmore’s corridors at night. Following her own harrowing escape, Serafina risks everything by joining forces with Braeden Vanderbilt, the young nephew of the Biltmore’s owners. Braeden and Serafina must uncover the Man in the Black Cloak’s true identity... before all of the children vanish one by one.Serafina’s hunt leads her into the very forest that she has been taught to fear. There she discovers a forgotten legacy of magic, one that is bound to her own identity. In order to save the children of Biltmore, Serafina must seek the answers that will unlock the puzzle of her past.

    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.

    His parents are members of the Septemberist Society, whose job it is to protect humanity from hideous giants called the Mangleborn. Trapped in underground prisons for a thousand years, the giant monsters have been all but forgotten -- but now they are rising again as the steam-driven America of 1875 rediscovers electricity, the lifeblood of the Mangleborn.When his parents and the rest of The Septemberists are brainwashed by one of the evil creatures, Archie must assemble a team of seven young heroes to save the world.

    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!

    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?Before Chess, Emma, and Finn can question their mom about it, she takes off on a sudden work trip and leaves them in the care of Ms. Morales and her daughter, Natalie. But puzzling clues left behind lead to complex codes, hidden rooms, and a dangerous secret that will turn their world upside down.