Five centuries after the time of Kull, their numbers dwindling even further, a group of Serpent Men ally themselves with some human alchemists from Deviant-dominated pre-cataclysmic Lemuria to create the Serpent Crown, a device which gives them access to some of the enormous mystical power of their "god" Set. However, just as the alchemists and Serpent Men were about to exploit the power of the Crown, the Great Cataclysm occurred. This event was a worldwide natural disaster that brought about the sinking of both Atlantis and Lemuria and leads to the deaths of most of the surviving Serpent Men and the loss of the Serpent Crown for centuries.