"Tess Dombegh sails south as a spy, hunting for evidence of politically-motivated crimes, while also hunting for the last World Serpent that could save her friend, Pathka"--

When a former member of NERDS turns into a villainous cheerleader, Matilda "Wheezer" Choi and the rest of the NERDS must infiltrate the cheerleader squad and save the world from a machine that wreaks havoc by entering other dimensions.

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.

"Step-siblings Q (Quest) and Angela are thrust into the work of the U.S. Secret Service and the Israeli Mossad when Angela realizes she's being followed, and Q learns the secret about Angela's real mother--a former Secret Service agent who was supposedly killed by a terrorist group. But who are the good guys and who are the bad guys"--Cover, P. [4].

While working with the Australian Secret Service on a dangerous mission, teenaged spy Alex Rider uncovers information about his parents.

After being told that his father was an assassin for a criminal organization, fourteen-year-old Alex goes to Italy to find out more and becomes involved in a plan to kill thousands of English school children.

Seventh-grader Georges adjusts to moving from a house to an apartment, his father's efforts to start a new business, his mother's extra shifts as a nurse, being picked on at school, and Safer, a boy who wants his help spying on another resident of their building.

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 chance to make a home for herself within a secret team of MI6 agents....

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.

James is recruited into CHERUB, a secret division of MI5 which consists of teenage spies. He successfully completes his training and goes on his first mission.