Books like River Quest
John Vornholt
River Quest is 146 pages, about 2 hours 41 minutes at 250 words a minute.
6 books to read next
How long each takes
Dinotopia 2.9 h 
Danny and the Dinosaur 1.2 h 
Dinotopia the World Beneath 2.9 h 
Windchaser 2.7 h 
Lost City 2.6 h 
The Hand of Dinotopia 7.6 h Bar height shows length. Estimated at 250 words a minute.