Books like The Looking Glass War
John le Carré
The Looking Glass War is 264 pages, about 4 hours 50 minutes at 250 words a minute.
12 books to read next
How long each takes
The Matarese Circle 11.0 h 
Casino Royale 3.5 h 
Diamonds Are Forever 4.5 h 
The Spy and the Traitor 7.0 h 
For Your Eyes Only 4.4 h 
Live and Let Die 4.7 h 
From Russia, with Love 4.7 h 
The Devil's Chessboard 12.9 h 
Moonraker 4.7 h 
Dead Lions 6.5 h 
Thunderball 4.8 h 
Games of State 9.4 h Bar height shows length. Estimated at 250 words a minute.