Spy School Goes Wild

In the twelfth book in Stuart Gibbs’s New York Times bestselling Spy School series, superspy middle schooler Ben Ripley gets lost on a perilous mission with one of his greatest enemies.

Ben Ripley is recruited for a top secret mission to bring down his nemesis, Murray Hill, once and for all. But when things go horribly wrong, Ben ends up lost in an extremely dangerous wilderness with Murray—and confronting a new, devious enemy—with none of his friends to help him. Now, Ben must figure out how to survive and deduce what evil plan his new enemy is plotting in time to thwart it.

Stuart Gibbs is the New York Times bestselling author of the Charlie Thorne series, FunJungle series, Moon Base Alpha series, Once Upon a Tim series, and Spy School series. He has written screenplays, worked on a whole bunch of animated films, developed TV shows, been a newspaper columnist, and researched capybaras (the world’s largest rodents). Stuart lives with his family in Los Angeles. You can learn more about what he’s up to at StuartGibbs.com.

ISBN: 9781665934787
Format: Paperback
Pages: 336
Publisher: Simon & Schuster Books for Young Readers
Published: October 07, 2025