The book, Atlantis: The Eighth Continent (also titled Atlantis: The Lost Continent Revealed) by Charles Berlitz, argues that Atlantis was a real, advanced civilization.
It flourished in the Atlantic Ocean before recorded history, with splendid cities, temples, and global influence. The civilization ended in a cataclysm.
Berlitz uses undersea research evidence to claim Atlantis existed as fact, not legend. He links it to a mystery greater than the Bermuda Triangle.