When the Gallagher Academy, a secret spy school for girls, hosts male guests from Knowlton-Hale, Cammie is blamed for a series of security breaches that forces her to clear her name while trying to deny her attraction to an incorrigible hottie named Zach.

"The last thing Cammie Morgan remembers is leaving the Gallagher Academy to protect her friends and family from the Circle of Cavan, an ancient terrorist organization that has been hunting her for over a year. But when Cammie wakes up in an Alpine convent and discovers months have passed, she must now face the fact that her memory is a black hole. The only traces left of Cammie's summer vacation are the bruises on her body and dirt under her nails,...

In her alternate England of 1851, while taking her friend Sidheag by train to her werewolf pack in Scotland, fifteen-year-old Sophronia uncovers a plot that threatens to dissolve all of London into chaos and must decide where her loyalties lie once and for all.

When a terrifying encounter in London reveals that one of her most-trusted allies is actually a rogue double-agent, Cammie Morgan no longer knows if she can trust her classmates, her teachers--or even her own heart.

When Cammie Morgan visits her roommate Macey in Boston, she thinks she's in for an exciting end to her summer. But when you go to the world's best school (for spies), "exciting" and "deadly" are never far apart. The girls suddenly find themselves trapped in a kidnapper's plot, with only their espionage skills to save them.

Sophomore Frankie starts dating senior Matthew Livingston, but when he refuses to talk about the all-male secret society that he and his friends belong to, Frankie infiltrates the society in order to enliven their mediocre pranks.

Skye Hamilton, invited to attend the exclusive Alphas-only boarding school, must gird herself for the intense competition between young members of the country's best and brightest.

At Desert Mountain Academy, sixteen-year-old Nadia Riley begins a punishing routine to become an undercover CIA agent. But when a double-agent is reported on campus, she is the top suspect.

At a boarding school in Switzerland, fourteen-year-old Alex Van Helsing learns that vampires are real, that he has a natural ability to sense them, and that an agency called the Polidorium has been helping his family fight them since 1821.

Being the only Nightmare at Arkwell Academy, a boarding school for "magickind," sixteen-year-old Destiny Everhart feeds on the dreams of others, working with a handsome human student to find a killer.