Books like The World Set Free
H. G. Wells, Ellen Marriage
The World Set Free is 240 pages, about 4 hours 24 minutes at 250 words a minute.
12 books to read next
How long each takes
The Moon Is a Harsh Mistress 6.1 h 
Consider Phlebas 8.6 h 
The Postman 5.9 h 
Ice 2.9 h 
The Last Man 7.8 h 
Alas Babylon 5.7 h 
Before They Are Hanged 10.6 h 
Eon 9.4 h 
The Tower of the Swallow 8.2 h 
New Arabian Nights 6.0 h 
Forever Peace 6.6 h 
A Game of Thrones 14.7 h Bar height shows length. Estimated at 250 words a minute.