Books like Welcome to Camp Nightmare
R. L. Stine
Welcome to Camp Nightmare is 140 pages, about 2 hours 34 minutes at 250 words a minute.
12 books to read next
How long each takes
Nightmare 3.1 h 
Brain Camp 2.8 h 
City of Bones 9.4 h 
Camp Fear 3.9 h 
Heaven 8.1 h 
Remember Me 4.4 h 
In a Dark, Dark Room and Other Scary Stories 1.2 h 
The Vampire Diaries 9.2 h 
The Midnight Club 3.9 h 
Bruce Coville's Book of Nightmares 3.5 h 
Slumber Party 2.8 h 
The Halloween Tree 3.1 h Bar height shows length. Estimated at 250 words a minute.