Books like Have Mercy on Us All
Fred Vargas
Have Mercy on Us All is 348 pages, about 6 hours 23 minutes at 250 words a minute.
12 books to read next
How long each takes
Criminal 8.2 h 
Burn 7.6 h 
A Case of Need 6.1 h 
Memory Man 8.7 h 
Versprechen 3.4 h 
Rizzoli & Isles 6.1 h 
The Seven Deaths of Evelyn Hardcastle 9.2 h 
Maigret at the Crossroads 3.4 h 
The Sittaford Mystery 4.1 h 
The Black Dahlia 8.1 h 
The Nightmare 9.5 h 
14Th Deadly Sin 7.0 h Bar height shows length. Estimated at 250 words a minute.