Books like Flashman and the Dragon
George MacDonald Fraser
Flashman and the Dragon is 320 pages, about 5 hours 52 minutes at 250 words a minute.
12 books to read next
How long each takes
Assegai 8.9 h 
The Third Man 2.5 h 
Captain Blood 6.5 h 
El Dorado 8.0 h 
The Man Who Would Be King 44 min 
The Sea-Hawk 6.7 h 
The League of the Scarlet Pimpernel 4.4 h 
The Good Earth 5.8 h 
The Triumph of the Sun 9.3 h 
Wide Sargasso Sea 3.5 h 
The Riddle of the Sands 5.5 h 
The Secret of Shambhala 4.7 h Bar height shows length. Estimated at 250 words a minute.