Books like Jessi's Baby-sitter
Ann M. Martin
Jessi's Baby-sitter is 140 pages, about 2 hours 34 minutes at 250 words a minute.
6 books to read next
How long each takes
The Truth About Stacey 2.6 h 
Claudia and Mean Janine 3.2 h 
Kristy's Great Idea 3.4 h 
Mary Anne Saves the Day 2.9 h 
Boys Against Girls #17 1.9 h 
Navaeh Seadooll 2.7 h Bar height shows length. Estimated at 250 words a minute.