Books like Soldier of the Mist
Gene Wolfe
Soldier of the Mist is 335 pages, about 6 hours 9 minutes at 250 words a minute.
12 books to read next
How long each takes
The Return of the Soldier 2.3 h 
Old Man’s War 5.7 h 
Shift 10.6 h Select Editions--Volume 1 2009 10.5 h 
Code to Zero 8.1 h 
Hilo 7.8 h 
Dragon on a Pedestal 5.6 h 
The End of All Things 7.0 h 
Star Wars - Thrawn Ascendancy - Greater Good 8.7 h 
The Golden Age 5.9 h 
Halo 6.5 h 
Slow Bullets 3.5 h Bar height shows length. Estimated at 250 words a minute.