Books like The Gnats of Knotty Pine
Bill Peet
The Gnats of Knotty Pine is 46 pages, about 51 minutes at 250 words a minute.
11 books to read next
How long each takes
Gregor the Overlander 5.7 h 
Brian's Hunt 1.9 h 
Quick as a Cricket 35 min 
A Beginning, a Muddle, and an End 3.2 h 
Insect Detective 35 min 
The Very Clumsy Click Beetle 29 min 
Hooray for Fly Guy! 33 min 
Grasshopper Jungle 7.3 h 
The Last Wild 5.9 h 
Airborn 7.9 h 
Lord Brocktree 7.0 h Bar height shows length. Estimated at 250 words a minute.