When teenage international pop sensation Winter Young is recruited by a covert organization to take down a criminal tycoon, he is paired with Sydney Cossette, a fierce and unpredictable secret agent. She is posing as his bodyguard while they are on a mission to bring down criminal tycoon Eli Morrison. It seems Morrison has only one weakness: his daughter Penelope. And Penelope's only wish for her nineteenth birthday is a private concert with Winter...

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.

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!

Fourteen-year-old Wyatt avoids a prison sentence by agreeing to spend three months in a secret government training camp for teenage agents, but when enemies try to root out Camp Valor's secrets, Wyatt and his friends have to put their training into practice to protect their country

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 withing a secret team of your MI6 agents....

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 schoolchildren.

When Mae's Aunt Willa and Aunt Jane, both pilots, are kidnapped by evil Metallic Falcon, Josie, Mae, and Akiko, the Infinity Trinity, pursue them from Chicago to Sweetwater, Texas, to Paris, France.

The City Spies head to the Big Apple when a credible threat is made to a young climate activist who is scheduled to speak in front of the upcoming United Nations General Assembly. With Rio acting as alpha and a new member in their ranks, the team's mission to protect a fellow teen takes them on an exciting adventure in, around, and even under the greatest city in the world as they follow leads to the outer boroughs, the UN Headquarters, and even the...

Akiko, Mae, and Josie, also called the Infinity Trinity, spring into action after learning that a spy is betraying secrets to the Japanese military--and that Akiko's mother may be involved.--

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.