Families who loved Spy School at Sea by Stuart Gibbs often look for books with a similar feel. These 20 recommendations were selected for their similarity in style, theme, and reading level.
A parent would reach for this book when their child is ready for a high-octane adventure that balances serious stakes with laugh-out-loud humor. It is particularly effective for reluctant readers who enjoy fast-paced action and the idea of outsmarting the adults in the room. The story follows Ben Ripley as he goes undercover on the world's largest cruise ship to stop a criminal mastermind. While it deals with international espionage and life-or-death situations, it remains grounded in middle-school realities: the importance of loyal friends, the awkwardness of a first crush, and the struggle to prove oneself. It is a fantastic choice for building reading stamina through its cinematic pacing and cliffhanger chapters.