Books like The Great Shadow
Arthur Conan Doyle, Albert Savine
The Great Shadow is 143 pages, about 2 hours 37 minutes at 250 words a minute.
12 books to read next
How long each takes
Master and Commander 7.6 h 
Shirley 11.1 h 
Mr. Midshipman Hornblower 4.7 h 
Sharpe's Eagle 5.4 h 
The Reluctant Suitor 8.9 h 
H.M.S. Surprise 7.6 h 
Sharpe's Rifles 6.4 h 
A Ship of the Line 5.9 h 
Sharpe's Gold 4.7 h 
Sharpe's Skirmish 1.2 h 
Rifleman Dodd 3.5 h 
Hornblower And The Atropos 5.9 h Bar height shows length. Estimated at 250 words a minute.