Books like The Thirty-Nine Steps
John Buchan
The Thirty-Nine Steps is 116 pages, about 2 hours 8 minutes at 250 words a minute.
12 books to read next
How long each takes
Goldfinger 5.7 h 
Spook Street 6.5 h 
Divine Justice 7.5 h 
Diamonds Are Forever 4.5 h 
Stone Cold 7.3 h 
Slow Horses 6.2 h 
The Savage Detectives 11.4 h 
For Your Eyes Only 4.4 h 
The Crooked Staircase 10.6 h 
Dead Lions 6.5 h Mexico Set 7.2 h 
Icebreaker 4.7 h Bar height shows length. Estimated at 250 words a minute.