Books like The Emperor's Revenge
Clive Cussler, Boyd Morrison
The Emperor's Revenge is 464 pages, about 8 hours 30 minutes at 250 words a minute.
12 books to read next
How long each takes
Clear and Present Danger 12.6 h 
Slow Horses 6.2 h 
Spook Country 7.0 h 
Stone Cold 7.3 h 
The Atrocity Archives 6.2 h 
The Prisoner of Heaven 5.8 h 
The Whole Truth 8.2 h 
Springboard 6.8 h 
It 21.4 h 
Spook Street 6.5 h 
The Invisible Library 6.5 h 
The Midnight Line 7.6 h Bar height shows length. Estimated at 250 words a minute.