Books like The Conqueror
Georgette Heyer
The Conqueror is 381 pages, about 6 hours 59 minutes at 250 words a minute.
12 books to read next
How long each takes
The Other Boleyn Girl 12.2 h 
Harold 7.1 h 
To Hold the Crown 7.3 h 
Forever Amber 14.2 h 
Voyage in the Dark 3.5 h 
Devil's Brood 14.5 h 
Myself My Enemy 7.0 h 
Hamnet 6.5 h 
The Crystal Cave 8.8 h 
Lady Susan 1.8 h 
The Boleyn Inheritance 10.3 h 
The Constant Princess 9.0 h Bar height shows length. Estimated at 250 words a minute.