Books like The Case of the Sun Bather's Diary
Erle Stanley Gardner
The Case of the Sun Bather's Diary is 230 pages, about 4 hours 13 minutes at 250 words a minute.
12 books to read next
How long each takes
The Fifth Witness 7.7 h 
The Concrete Blonde (Harry Bosch) 8.4 h 
The Lincoln Lawyer 8.7 h 
Dark Fire 10.2 h 
Small Great Things 11.5 h 
The Little Death 3.1 h 
Open and Shut 4.5 h 
The Big Sleep 4.2 h 
Presumed Innocent 7.9 h 
Law of Innocence 8.2 h 
Smash Cut 7.0 h 
The Defense 5.9 h Bar height shows length. Estimated at 250 words a minute.