Books like Royal Assassin
Robin Hobb, Arnaud Mousnier-Lompré
Royal Assassin is 581 pages, about 10 hours 39 minutes at 250 words a minute.
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Queen of Shadows 12.3 h 
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Blood of Elves 7.1 h 
The Time of Contempt 6.1 h 
Sword of Destiny 7.3 h 
A Game of Thrones 14.7 h 
The Way of Shadows 11.8 h 
Smoke and Mirrors 6.6 h 
The Halfling's Gem 5.7 h 
Season of Storms 7.7 h Bar height shows length. Estimated at 250 words a minute.