Books like The Long War
Terry Pratchett, Stephen Baxter
The Long War is 488 pages, about 8 hours 57 minutes at 250 words a minute.
12 books to read next
How long each takes
Stone of Farewell 13.4 h 
Fire & Blood 16.1 h 
Tiamat's Wrath 10.0 h 
The Way of Kings 18.5 h 
Oathbringer 22.8 h 
A Song of Ice and Fire 26 min 
The World of Ice & Fire 6.1 h 
For The Emperor 7.6 h 
The Line of Polity 7.8 h 
Stone of Tears 14.1 h 
The Map of Time 12.0 h 
The Martian 7.5 h Bar height shows length. Estimated at 250 words a minute.