Danny Caulfield's quiet Christmas break from Wilsons Academy, the school for spies, is shattered by gunshots and a heartrending discovery about his parents, and he is called back to Wilsons to prepare to go undercover to protect the Treaty Stone that keeps peace between the Upper and Lower Worlds.

After the death of the uncle who had been his guardian, fourteen-year-old Alex Rider is coerced to continue his uncle's dangerous work for Britain's intelligence agency, MI6. They told him his uncle Ian died in a car accident. But fourteen-year-old Alex Rider knows that's a lie, and the bullet holes in his uncle's windsheild confirm his suspicions. But nothing prepares him for the news that the uncle he always thought he knew was really a spy for...

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.

To stop LOTUS from taking over the government with its mind-control device, reluctant spy Max Segredo must reunite with his father and orphan friends.

When Lady Lilah disguises herself to sneak out of the castle she discovers that the country is on the verge of revolution and her brother is behind it, and Lilah and her friends decide to help by becoming spies.

Zac is going undercover to a house that might be haunted. It's lucky he doesn't get scared easily! Now he just has to figure out who's behind all the creepy surprises...

Zac is invited to the premiere of a new spy movie -- in Hollywood! At first Zac thinks he's getting a holiday from his spy work, but there's something strange going on. When Zac discovers a mysterious microchip with a prototype brain-washing technology, he realizes that there's no time-off for a super spy.

As almost thirteen-year-old Ben, a student at the CIA's academy for future intelligence agents, prepares to go to spy summer camp, he receives a death threat from the evil organization SPYDER.

In World War II London, a young spy named Bertie, his strong-willed American friend Eleanor, a Jewish refugee named David, and a dog called Little Roo try to prevent a double agent from giving secrets to the Nazis.

Separated from his parents and older brother, twelve-year-old Zac, a secret agent of the Government Investigation Bureau, must rely on his own skills to obtain the formula for Dr. Drastic's secret Solution X.