Books like Masks of the Illuminati
Robert Anton Wilson
Masks of the Illuminati is 336 pages, about 6 hours 10 minutes at 250 words a minute.
12 books to read next
How long each takes
So Long, and Thanks for All the Fish 3.7 h 
The House on the Borderland 3.3 h 
Lilith 5.0 h 
The Globe 6.8 h 
Soul Catcher 4.6 h 
Einstein's Dreams 3.3 h 
Lost Horizon 4.4 h 
A Game of Thrones 14.7 h 
2150 A.D 5.9 h 
Storm Born 6.9 h 
The Parrot's Theorem 9.6 h 
The Midnight Library 5.6 h Bar height shows length. Estimated at 250 words a minute.