Books like Lemuria & Atlantis
Shirley Andrews
Lemuria & Atlantis is 273 pages, about 5 hours at 250 words a minute.
6 books to read next
How long each takes
The History of Atlantis 4.4 h 
Supernatural 13.1 h 
The Earth Chronicles Expeditions 4.9 h 
Eden in the East 10.3 h 
The Dawn of History 6.7 h 
Apple Branch 4.8 h Bar height shows length. Estimated at 250 words a minute.