Books like On Dangerous Ground
Jack Higgins
On Dangerous Ground is 306 pages, about 5 hours 37 minutes at 250 words a minute.
12 books to read next
How long each takes
For Your Eyes Only 4.4 h 
Doctor No 4.4 h 
Clear and Present Danger 12.6 h 
The Key to Rebecca 6.5 h 
Shibumi 7.3 h 
The Chemist 9.7 h 
American Assassin 8.0 h 
The Unlikely Spy 10.0 h 
A Perfect Spy 10.6 h 
Killing Eve 4.4 h 
Diamonds Are Forever 4.5 h 
The Golden Buddha 9.3 h Bar height shows length. Estimated at 250 words a minute.