According to Helena Blavatsky, a Ukrainian spiritualist, Thevetat was the great Dragon King who corrupted the psychics of Atlantis, turning them into evil sorcerers.
An ancient king of one of the divisions of Atlantis, the submerged continental system of the fourth root-race (SD 2:222). He is instanced as one of the natural born adept-magicians who neither learned nor acquired knowledge, but who knew all without being initiated. "Under the evil insinuations of their demon, Thevetat, the Atlantis-race became a nation of wicked magicians" (IU 1:593).
- Helena Blavatsky. (1877). Isis Unveiled
- Holly Wallace. (1999). The Mystery of Atlantis ISBN 1-57572-803-6