Books like Night of the Moonjellies
Mark Shasha
Night of the Moonjellies is 32 pages, about 35 minutes at 250 words a minute.
8 books to read next
How long each takes
Just Grandma and Me 26 min 
Just Grandpa and Me 26 min 
Sky the Blue Fairy 1.3 h 
Full, Full, Full of Love 35 min 
Isadora Moon Goes Camping 2.1 h 
Troubletwisters 5.4 h 
Bob 3.8 h 
The Monster 5.6 h Bar height shows length. Estimated at 250 words a minute.