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,...

Thirteen-year-old Jemma, her best friends Kate and Piper, and new student Bet are invited to join a secret society at school meant to help other girls with their problems, but membership brings many complications.

"Adelina Amouteru survived the blood fever, a deadly illness that killed many, but left others with strange markings and supernatural powers. Cast out by her family, Adelina joins the secret society of the Young Elites and discovers her own dangerous abilities"--

"Molly Bigelow and her Omega team have been banned from investigating Marek Blackwell and his plans for New York City. But when they discover that Blackwell is raising money for a zombie army they have to act. But will they be in time?"--

Sixteen-year-old Hope Walton travels back in time to help rescue her mother, a member of the secret society of time travelers, who is trapped in twelfth-century England in the age of Eleanor of Aquitaine.

As Wade, Darrell, Lily, and Becca continue their search for an ancient relic, Wade's mother is kidnapped by Galina Krause, leader of the present-day Teutonic Knights.

After their father's research experiment at the British Museum unleashes the Egyptian god Set, Carter and Sadie Kane embark on a dangerous journey across the globe -- a quest which brings them ever closer to the truth about their family, and their links to a secret order that has existed since the time of the pharaohs.

Dorrie and her brother Marcus accidently open a portal to Petrarch's Library, where they discover a secret society of warrior librarians who travel in time, protecting the world's greatest thinkers from torture and death for sharing knowledge and ideas.

A certain pen, a certain book, and a certain person can craft entirely new worlds through a branch of science called scriptology. Elsa comes from one such world that was written into creation by her mother a noted scriptologist.

When Milton Worthy learns his classroom's pet ferret is the evil mastermind behind a dastardly plot for world domination, it's more than just about any kid could handle. But then not every kid is the son of a member of the super-secret, super-awesome Society of Substitutes! Now it's up to Milton and his substitute teacher mom to save Beacher Elementary School before time runs out.