Books like Free Willy
Todd Strasser, Derek Strange
Free Willy is 110 pages, about 2 hours 1 minute at 250 words a minute.
12 books to read next
How long each takes
The One and Only Ivan 6.0 h 
Shiloh 2.6 h 
The Tiger Rising 2.4 h 
The Secret Of Whale Island 52 min 
Always There 3.3 h 
New Beginnings 3.2 h 
Eva 4.1 h 
From This Day On 3.1 h 
The Twits 1.8 h 
Francine Poulet Meets the Ghost Raccoon 2.1 h 
Badger in the Basement 2.8 h 
A Horse for Christmas 3.2 h Bar height shows length. Estimated at 250 words a minute.