Books like Keeper of the Night
Kimberly Willis Holt
Keeper of the Night is 318 pages, about 5 hours 50 minutes at 250 words a minute.
12 books to read next
How long each takes
Tweak 6.5 h 
Forged by Fire 2.9 h 
Among the Hidden 2.9 h 
Hold Still 5.0 h 
Sammy and Juliana in Hollywood 5.6 h 
Stop Pretending 2.9 h 
Bottled Up 4.1 h 
Nothing but the Truth 3.8 h 
Faerie Wars 7.9 h 
Before We Were Free 3.1 h 
Moonrise 5.9 h 
Under the Wolf, Under the Dog 5.7 h Bar height shows length. Estimated at 250 words a minute.