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Spy School at Sea

by Stuart Gibbs

Book 9 in Spy School

Subject
Spies & Spying
Age
6-8 years
Format
Trade Paperback
Pages
384
Publisher
Simon & Schuster Books for Young Readers
Size
12.9 cm × 19.1 cm
ISBN
9781534479449
In the ninth addition to the New York Times bestselling Spy School series, Ben Ripley faces his nemesis, Murray Hill, on the high seas.

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 out what Murray is plotting.

At first, it sounds exciting to have a mission on the most glamorous ocean liner on earth, but as usual, nothing goes according to plan. There is action, danger, and plenty of surprises as Ben and his team quickly find themselves in hot water.

About the author

Stuart GibbsAuthor

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

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What reviewers said

"Recommended purchase for all libraries where plucky kid sleuths and the “Spy School” is popular."
SCHOOL LIBRARY JOURNAL
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© 2026 Peekabooks Inc. All Rights Reserved.