Emmy's dad disappeared years ago, and with her mother too busy to parent, she's shipped off to Wellsworth, a prestigious boarding school in England. But right before she leaves, a mysterious box arrives full of medallions and a note reading: These belonged to your father.

Growing up in 1943 war-torn England, thirteen-year-old Alice and her older sister Louise are members of a centuries-old spy clan, but when Louise decides to spy for the enemy, their bond is changed forever.

Noah, Megan, Richie, and Ella must navigate a maze of never-ending aquariums in the Secret Zoo to rescue their animal friends.

When he purchases a mysterious ring at a flea market, Zach Darlington is granted strange powers that come in handy when scary creatures emerge from hiding, determined to fulfill a prophecy dooming all who walk the Earth.

When Michael Malone saves a dog, he discovers that he has paranormal abilities, which bring him to the attention of a secret organization, UNICORNE--but he plans to use the ability to find out what happened to his father, who mysteriously vanished three years earlier, and save his new friend, Freya.

"Cassidy Blake and her ghostly friend, Jacob, have survived the ghosts of Edinburgh and Paris, but New Orleans is a haunted city in a class by itself, and that is the current stop for her parents' TV show; but there is something a lot scarier than ghosts here: the Emissary of Death is after Cassidy, and to defeat it she will need the help of the Society of the Black Cat and she will also be faced with a terrible choice--lose one of her two friends,...

Before returning to Wellsworth, twelve-year-old Emmy receives a letter from her father telling her to trust no one, but the Order is up to no good and she will need help to stop them.

"Since their mother's death, Carter and Sadie have become near strangers. While Sadie has lived with her grandparents in London, her brother has traveled the world with their father, the brilliant Egyptologist, Dr. Julius Kane. One night, Dr. Kane brings the siblings together for a "research experiment" at the British Museum, where he hopes to set things right for his family. Instead, he unleashes the Egyptian god Set, who banishes him to oblivion...

Horace F. Andrews, armed with a strange wooden box, and Chloe Burke, wearing a mysterious dragonfly pendant, become entangled in a secret and ancient society striving to protect powerful devices from the evil Riven.

Michael Malone is assigned to investigate a local comic shop by the mysterious UNICORNE agency because they are displaying a comic book with a disturbingly familiar heroine--but he soon realizes that the sinister shop hides an invisible army come to life, with a menacing maniac at its head, and worse he does not know if he can trust his fellow agents.