Books like Moomin and the Martians
Tove Jansson
Moomin and the Martians is 38 pages, about 42 minutes at 250 words a minute.
12 books to read next
How long each takes
Redwall 6.5 h 
Bone 4.3 h 
Avatar 1.7 h 
The Lost Warrior 1.9 h 
Dragonball 3.9 h 
Big Nate I Can't Take It! 4.1 h 
Spider-Man 5.3 h 
Unicorn on a Roll 4.1 h 
The Earth Kingdom Chronicles 1.8 h 
Dog Man Unleashed 4.1 h 
ポケットモンスターSPECIAL 7 3.8 h 
The Truth About Stacey 2.6 h Bar height shows length. Estimated at 250 words a minute.