
Based on your book
by Gibbs, Stuart
When Henry the hippo turns up dead at FunJungle, the zoo's newest and most expensive attraction, everyone assumes it was just a tragic accident. Everyone, that is, except twelve-year-old Teddy Fitzroy. Living on-site as the son of two staff members, Teddy knows the facility better than anyone and quickly realizes the official story does not add up. What follows is a sharp, fast-moving investigation that pits a kid with a keen eye for detail against a corporate machine determined to keep the truth buried. The book balances genuine suspense with a dry, observational humor that keeps the pages turning. If you enjoy stories about underdogs who refuse to be silenced by self-important adults, or if you simply love a well-plotted mystery set in a world that feels both expansive and claustrophobic, this will hit the spot.
Since you enjoyed the thrill of Teddy Fitzroy outing corrupt adults and navigating high-stakes puzzles, these selections were curated to keep that investigative momentum alive. We looked for stories that capture that specific balance of witty, capable kids working against the clock to solve complex mysteries. Whether it is protecting wildlife, infiltrating secret societies, or decoding intricate games, these books mirror the cleverness and camaraderie that make Belly Up so addictive. If you are hungry for more brainy protagonists and fast-paced tension, these picks will feel like a natural next step for your bookshelf.
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Like 'Belly Up', this book features a clever young protagonist navigating a unique, contained environment while solving a high-stakes mystery. It shares the same blend of humor, puzzle-solving, and fast-paced adventure that makes Stuart Gibbs' work so engaging.
Fans of Teddy Fitzroy's investigative instincts will love this story about gifted children recruited to solve a dangerous mystery. It matches the 'Belly Up' tone of smart kids outwitting adults in a suspenseful, intriguing setting.
by Stuart Gibbs
Since this is by the same author, it perfectly captures the signature voice, humor, and pacing that readers loved in 'Belly Up'. It features another relatable, slightly awkward protagonist thrust into a world of espionage and secrets.
by Carl Hiaasen
This book shares the 'Belly Up' theme of kids intervening to protect animals and the environment against corrupt adults. It balances serious ecological themes with a funny, quirky, and ultimately hopeful narrative.

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by Kate Milford
This mystery offers a slightly more atmospheric and cozy vibe while maintaining the 'kid detective' element found in 'Belly Up'. Readers will enjoy the intricate plotting and the feeling of being trapped in a unique location where everyone has a secret.
by Ellen Raskin
A classic mystery that, much like 'Belly Up', challenges the reader to piece together clues alongside the characters. Its ensemble cast and clever, puzzle-like structure provide the same intellectual satisfaction as Teddy's investigation.
by James Ponti
This book features a young protagonist who uses his unique skills to solve crimes, mirroring Teddy Fitzroy's role as an amateur sleuth. It is fast-paced, funny, and perfect for readers who enjoy seeing kids outsmart the authorities.
by Carl Hiaasen
Returning to the theme of wildlife and eccentric characters, this book is a great follow-up for those who enjoyed the zoo setting of 'Belly Up'. It combines Hiaasen's sharp wit with a wild, unpredictable plot involving animals and human folly.
by James Ponti
Readers who enjoyed the 'kids in over their heads' dynamic of 'Belly Up' will appreciate this team of young operatives. It offers a great mix of humor, high-stakes mystery, and a strong sense of camaraderie.
This classic captures the same 'kid-on-a-mission' energy, where the protagonist uses their wits to navigate a large, public space (a museum instead of a zoo). It shares the sense of wonder and the thrill of discovery that drives the plot of 'Belly Up'.

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As an Amazon Associate, we earn from qualifying purchases.