Books like Fortress of Eagles
C. J. Cherryh
Fortress of Eagles is 407 pages, about 7 hours 28 minutes at 250 words a minute.
12 books to read next
How long each takes
Arthas 6.1 h 
Storm Front 6.5 h 
A Princess of Mars 3.2 h 
Equal Rites 4.8 h 
The Science of Discworld 7.3 h 
The Hobbit 5.7 h 
Stone of Farewell 13.4 h 
Starless Night 6.2 h 
The Earthsea Quartet 12.9 h 
The Elvenbane 7.6 h 
Project Hail Mary 9.1 h 
An Absolutely Remarkable Thing 6.5 h Bar height shows length. Estimated at 250 words a minute.