Books like Madame Maigret's Friend
Georges Simenon
Madame Maigret's Friend is 187 pages, about 3 hours 26 minutes at 250 words a minute.
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How long each takes
The Murders in the Rue Morgue 46 min 
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Milk and Honey 7.8 h 
Serpent's Tooth 7.7 h 
False Prophet 7.6 h 
The Cater Street Hangman 5.3 h 
Roses Are Red 7.5 h 
Paragon Walks 4.7 h 
Half Moon Street 5.9 h 
Grievous Sin 7.3 h 
Sacred Games 16.9 h 
Highgate Rise 6.2 h Bar height shows length. Estimated at 250 words a minute.