Twelve-year-old Theodore “Teddy” Roosevelt Fitzroy has murder on his hands and trouble on his tail. He believes that Henry, the hippopotamus at the brand-new FunJungle, has been murdered. The zoo’s top brass claim the hippo went belly up the natural way, but Teddy and his feisty friend...

In the thirteenth book in Stuart Gibbs’s New York Times bestselling Spy School series, superspy middle schooler Ben Ripley goes off the grid to eliminate a cybersecurity threat. After a devious computer hacker pulls off the CIA’s worst-case scenario, shutting down power networks all over the...

It’s a murder mystery on the moon in this humorous and suspenseful space adventure from the author of Belly Up and Spy School that The New York Times Book Review called “a delightful and brilliantly constructed middle grade thriller.” Like his fellow lunarnauts—otherwise known as...

“Combines Alex Rider’s espionage skills with a huge dose of the sarcasm of Artemis Fowl.” —School Library Journal Can an undercover nerd become a superstar agent? In the first book in the New York Times bestselling Spy School series, Ben Ripley sure hopes so—and his life may depend on...

In this third installment of the New York Times bestselling Charlie Thorne series—which #1 New York Times bestselling author Chris Grabenstein called “a real page-burner”—Charlie tracks down Cleopatra’s greatest treasure in Egypt. Charlie Thorne is a genius. Charlie Thorne is a...

Now with a reimagined look! Join a peasant boy who wants to be a knight in the laugh-out-loud funny, highly illustrated first book of the New York Times bestselling Once Upon a Tim chapter book series from Spy School author Stuart Gibbs. Tim is just a peasant, but he dreams big. He wants more...

The first book in the thrilling time travel adventure trilogy from New York Times bestselling Spy School author Stuart Gibbs—now with a brand-new look! Before they were legends, they were friends. All for one and one for all! On a family trip to Paris, Greg Rich's parents disappear. They're...

Loyalty is tested in this second book in the thrilling time travel adventure trilogy from New York Times bestselling Spy School author Stuart Gibbs. Having assumed the identity of a young D’Artagnan, Greg Rich is beginning to get the hang of things in 1615 Paris. But he hasn’t figured out...

A New York Times bestseller! A GMA3 Summer Reading Squad Selection! “Ingeniously plotted, and a grin-inducing delight.” —People “Will keep young readers glued to the page…So when do I get the sequel?” —Beth McMullen, author of Mrs. Smith’s Spy School for Girls In this thrilling...

When a baby gorilla is stolen from an orphanage in Rwanda, Teddy, his parents, and an old family friend find themselves in a race against time to save it. Teddy has to piece together clues to figure out where the little ape is being taken while traveling through some of the most incredible—and dangerous—terrain in the world.