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.

"Dashiell Gibson, who lives on Moon Base Alpha, has to solve a murder of one of the moon's most prominent doctors"--

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.

While visiting his girlfriend Summer in Malibu, Teddy stumbles upon two mysteries involving a blown up whale explosion and a string of beach sand thefts, but his investigation is sidetracked by a rumor that his girlfriend is dating a celebrity, leading him to question their relationship.

"Charlie Thorne must search for Charles Darwin's hidden treasure in South America--with plenty of enemies hot on her trail"--

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.

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.

Thirteen-year-old Ben Ripley is assigned to protect the president from an assassination attempt in his first solo mission, but he may be in over his head.

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.

"Prince Ruprecht is very upset that knights-in-training Tim and Belinda have thwarted his plans and ruined his chances with Princess Grace. So to get even, he has kidnapped the princess and trapped her in the most complicated, dangerous, complex, dastardly, biggest (okay, you get the point)...and scariest maze in all the world! Now it's up to Tim, Beinda, Ferkle, and Rover to fend off menacing beasts (like the minotaur), conquer treacherous obstacles...