Books like Hadrian the Seventh
Frederick Rolfe
Hadrian the Seventh is 368 pages, about 6 hours 45 minutes at 250 words a minute.
12 books to read next
How long each takes
A Tale of a Tub 4.6 h 
Second Class Citizen 3.5 h 
The Master of Petersburg 4.7 h 
The World According to Garp 10.8 h 
The Slave Girl 3.3 h 
The Horse's Mouth 5.7 h 
Good Morning, Midnight 3.5 h 
The Dog of the South 4.7 h 
Less 5.1 h 
Youth 3.2 h 
The Mystic Masseur 4.0 h 
Guards! Guards! 6.9 h Bar height shows length. Estimated at 250 words a minute.