Ages 4–6After the Zoo Closes · Book 2
Otis the Hippo and the Submarine
Book 2 of After the Zoo Closes
Real hippos walk on the bottoms of rivers — most readers don't know that. Otis takes the trick to its limit, climbing into a submarine and walking the seabed of the deep ocean. The biological-reveal book of the series.
Expected release: Late Spring 2027
Final trim 10 × 8 in landscape · ~32 pages. ISBN, cover art, and retailer links will appear here as the book moves through production.
Where to buy
Coming Late Spring 2027 — pre-orders open closer to release.
Themes & SEL
oceandepthbiologybraverycuriosity