Books like The Proteus Operation
James P. Hogan
The Proteus Operation is 480 pages, about 8 hours 48 minutes at 250 words a minute.
12 books to read next
How long each takes
Dirk Gently’s Holistic Detective Agency 5.1 h 
Blackout 9.7 h 
All Clear 11.8 h 
My Cousin Rachel 6.4 h 
Killing Time 6.7 h 
Into the Storm 7.2 h 
Weapons of Choice 11.5 h 
Anne Frank 2.3 h 
The Gone World 7.2 h 
Lost in a Good Book 7.3 h 
The Eagle Has Flown 6.2 h 
First Among Sequels 7.6 h Bar height shows length. Estimated at 250 words a minute.