Eleven-year-old Harriet keeps notes on her classmates and neighbors in a secret notebook, but when some of the students read the notebook, they seek revenge.

When a mysterious pony named Agent Furlong pays Bon Bon a visit, Lyra discovers that her best friend is actually an operative for a top secret monster-capturing league. To prove their friendship is forever. Lyra and Bon Bon will have to go undercover together and protect Equestria from the ongoing changeling threat.

When the creator of a new, popular reality game is kidnapped, Abigail Hunter and her friends go on their first official mission for The Center and if they are lucky they might just save the world.

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.

Sara Martinez is a hacker. She recently broke into the New York City juvenile justice system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, she finds herself facing years in a juvenile detention facility and banned from using computers. Enter Mother, a British spy who not only gets sara released from jail but also offers her a chence to make a home for herself withing a secret team of your MI6 agents....

Sixteen-year-old Kitty Granger has always known that others consider her peculiar. She hates noise and crowds, tends to fixate on patterns, and often feels acutely aware of her surroundings even as she struggles to interpret the behavior of people around her. As a working-class girl in London's East End, she's spent her whole life learning to hide these traits. Until the day when she notices the mysterious man on the bus and finds herself following...

While on a mission aboard the The Emperor of the Seas, Ben Ripley faces off against his arch enemy, Murray Hill, on the high seas and quickly finds himself in hot water as things take a dangerous turn.

Almost-fifteen-year-old psychic investigator Gilda Joyce interns for the summer at the International Spy Museum in Washington, D.C., and solves a mystery involving national security.

In 1864 twelve-year-old former slave Charlotte is lucky enough to live on a plantation near Richmond, Virginia, owned by a Miss Van Lew, who hates slavery, and when Charlotte overhears a conversation she realizes that her mistress is gathering information and passing it on to the Union army; Charlotte is eager to help, (especially since her own cousin, Mary, is involved) but her enthusiasm may endanger them all--or help free 400 Union soldiers who...