Stuart Gibbs

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.

For once, operations at the enormous zoo/theme park appear to be running smoothly (except for the occasional herring-related mishap in the penguin exhibit) and Teddy Fitzroy is finally able to give detective work a rest. But then a local lion is accused of killing a famous dog--and the dog's owner, an inflammatory radio host, goes on a crusade to have the cat declared a nuisance so it can be hunted. However, there's evidence that the lion might have...

While visiting a ranch near Yellowstone National Park with his parents, Summer, and her parents, Teddy Fitzroy investigates the disappearances of bison and an irreplaceable necklace.

After getting expelled from spy school for accidentally shooting a live mortar into the principal's office, thirteen-year-old Ben finds himself recruited by evil crime organization SPYDER.

When Greg and the Musketeers return to Paris and find the city under siege, they leap into action to prevent King Louis from being overthrown and history from being changed forever.

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.

Twelve-year-old Ben'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.

The local police prove unhelpful when a 500-pound dinosaur skull vanishes from a secret excavation on Sage's family's ranch, so Teddy and his friends conduct their own investigation.

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