Books like The Leaf Men and the Brave Good Bugs
William Joyce
The Leaf Men and the Brave Good Bugs is 40 pages, about 44 minutes at 250 words a minute.
12 books to read next
How long each takes
Eragon 10.6 h 
The Return of the King 9.0 h 
Keeper of the Lost Cities 9.4 h 
Exile 10.4 h 
Tom's Midnight Garden 4.2 h 
Gregor the Overlander 5.7 h 
The Doll in the Garden 2.4 h 
The Magic in the Weaving 4.6 h 
Prince of the Elves 3.8 h 
The Alphabet Tree 36 min 
The Last Dragon 6.8 h 
Insect Invaders 1.7 h Bar height shows length. Estimated at 250 words a minute.