Stuart Gibbs

On another harrowing mission, survival training comes in handy when Ben Ripley is stranded in the wilderness with his nemesis, Murray Hill.

In 2041 on Moon Base Alpha, thirteen-year-old Dash must solve the mystery of how Lars was poisoned before the base loses oxygen, forcing the colonists to return to Earth.--Provided by Publisher.

Thirteen-year-old spy in training Ben Ripley is sent to Mexico to try to thwart the evil organization, SPYDER--the CIA's main enemy.

After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet. In 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her...

Thirteen-year-old Ben Ripley's unexpected success outside the classroom causes the CIA to activate him for a mission to become friends with Jessica Shang, daughter of a suspected Chinese crime boss.

Teddy Fitzroy must solve the crime of the kidnapped rare and expensive panda, Li Ping.

Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school.

"Follows the spies-in-training on a hunt to find the leader of the evil organization SPYDER and take them down once and for all"-- Provided by publisher.

"Before they were legends, they were friends. All for one and one for all! On the first day of a family trip to Paris, Greg Rich's parents disappear. They're are not just missing from the city - they're missing from the century. So Greg does what any other fourteen-year-old would do: he travels through time to rescue them. Greg soon finds out that his family history is tied to the legendary Three Musketeers. But when he meets them, they're his age,...

"Top-secret training continues into summer for aspiring spy Ben Ripley--and so does the danger."-- Provided by publisher.