Books like Monstrous Regiment
Terry Pratchett
Monstrous Regiment is 411 pages, about 7 hours 32 minutes at 250 words a minute.
6 books to read next
How long each takes
Lie Down With Lions 7.0 h 
Mila 18 10.1 h 
The Great War and Modern Memory 6.7 h 
Battle Flag 8.4 h 
A Passage North 5.6 h 
Blood of the Mantis 8.2 h Bar height shows length. Estimated at 250 words a minute.