As a sophomore at a secret spy school and the daughter of a former CIA operative, Cammie is sheltered from "normal teenage life" until she meets a local boy while on a class surveillance mission.

Select teenaged girls are invited to join the exclusive and futuristic Alpha Academy, where they must compete feverishly to establish and maintain their status among their extremely competitive peers.

A few weeks into her sophomore year at Ventura High School in California, Wren Verlaine is shipped off to Hardwick Hall, a prestigious boarding school in Connecticut, where clues begin appearing about the one secret her mother has ever kept from her.

When transfer student Finch Chamberlin and popular senior Selena St. Clair accidentally wake something terrifying and ancient in the depths of their school, they must work together to stop the horror they unleashed before it consumes the town.

Scholarship student Rachel keeps to herself at Manchester Prep, preferring the company of horror films to trust fund babies. When a prank puts her on the radar of a mysterious student society, "The Mary Shelley Club", they subject her to a number of escalating Fear Tests which eventually puts them on the radar of a serial killer.

While investigating the apparent suicide of their best friend, four students at an elite boarding school uncover a series of past murders connected to ancient fairy tale curses, and they fear that their own fates are tied to the stories, dooming them to gruesome deaths unless they can forge their own paths.

Emmy's adventure continues when she returns to school and has to deal with a sinister organization, a missing father, and secrets she's not sure with whom she can trust.

At an English boarding school in the 1930s, crime-solving friends Hazel Wong and Daisy Wells struggle to find an exciting mystery to investigate until Hazel discovers the dead body of Miss Bell, the science teacher.

"Adele grew up in the shadows--first watching from backstage at her mother's Parisian dance halls, then wandering around the gloomy, haunted rooms of her father's manor. When she's finally sent away to boarding school in London, she's happy to enter the brightly lit world of society girls and their wealthy suitors. Yet there are shadows there, too. Many of the men that try to charm Adele's new friends do so with dark intentions. After a violent assault,...

In alternating points of view, Alice, Millie, Jessica, and Jeremy must work together when the secret world of the Bigfoot is threatened by someone with a personal vendetta against them.