Books like Empire from the Ashes
David Weber
Empire from the Ashes is 779 pages, about 14 hours 17 minutes at 250 words a minute.
12 books to read next
How long each takes
Infinite Stars 9.9 h 
Children of the Mind 7.0 h 
Star Wars Trilogy 11.6 h 
Warriors 13.5 h 
The Swarm 9.7 h 
Gears of War - Aspho Fields 7.1 h 
First Lensman 5.6 h 
Engaging the Enemy 7.5 h 
Halo Kilo-Five Trilogy 8.1 h 
Ender's Game 6.1 h 
Between Planets 4.1 h 
A Forest of Stars 13.2 h Bar height shows length. Estimated at 250 words a minute.