Tim and his friends travel by land and sea, collecting treasure and defeating monsters as they go.

With no knightly experience but plenty of pluck and an impressive vocabulary, a twelve-year-old peasant, hoping to improve his station in life, volunteers to help a cowardly prince and his not very powerful wizard rescue a princess from an evil, foul-smelling monster.

Charlie Thorne is a genius. Charlie Thorne is a renegade. Charlie Thorne isn’t going down without a fight. 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...

Publisher Annotation: Thanks to the evidence Ben uncovered in his investigation of the Croatoan, the CIA has tracked his nemesis, Murray Hill, to Central America, where they believe he is boarding the world’s biggest cruise ship, The Emperor of the Seas, on its maiden voyage around the world. His mission: Pose as part of a family, with Alexander and Catherine Hale as his parents, Erica as his sister, and his best friend Mike as his brother, to find...

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.

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.

Twelve-year-old Teddy Fitzroy is the prime suspect when FunJungle's newly-acquired koala goes missing, thanks to a prank staged by middle school bully Vance Jessup.

Superspy middle schoolers Ben and Erica must embark on mission to rescue Erica's grandfather, who was abducted from a remote Alaskan training facility.

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.