Teenage James has forty-eight hours to rescue a kidnapped professor and to keep a powerful weapon from falling into the wrong hands.

"Teenage hacker Emika Chen embarks on a mission to unravel a sinister plot and is forced to join forces with a shadowy organization known as the Blackcoats"--

"When teenage coder Emika Chen hacks her way into the opening tournament of the Warcross Championships, she glitches herself into the game as well as a sinister plot with major consequences for the entire Warcross empire"--

When hackers target locations all over London, Kat leads the City Spies in testing security for the British Museum where a secret message leads them to Egypt and the ancient City of the Dead.

Reluctant teenage-spy Alex Rider, on a routine mission at the Wimbledon tennis championships, gets caught up in Chinese gangs, illegal nuclear weapons, and the suspect plans of his Russian host, General Sarov.

Mrs. Cooney, the school nurse, is so beautiful that A.J. has a crush on her--even though he suspects she might be an international spy!

In the early years of the Civil War, teenage Kansan farm boy Lije Tulley becomes a Jayhawker, an abolitionist raider freeing slaves from the neighboring state of Missouri, and then goes undercover there as a spy.

In 1932 Shanghai, exposed national spy Rosalind Lang must rescue fellow spy, Orion, whose memories of Rosalind were wiped, and find a cure to a dangerous chemical weapon before it lands in the hand of foreign invaders. Rosalind Lang has suffered the worst possible fate for a national spy: she's been exposed. With the media storm camped outside her apartment for the infamous Lady Fortune, she's barely left her bedroom in weeks, plotting her next course...

In a country governed by isolation, fear, and a tyrannical dictator, seventeen-year-old Cristian Florescu is blackmailed by the secret police to become an informer, but he decides to use his position to try to outwit his handler, undermine the regime, give voice to fellow Romanians, and expose to the world what is happening in his country. Includes author's note.

Fifteen-year-old MI6 agent Alex Rider travels around the world on a dangerous mission to destroy the deadly terrorist organization, Scorpia, once and for all.