In the Cthulhu Mythos, Glaaki is a Great Old One that currently dwells in a lake in England.
Appearance: A gigantic three-eyed slug with metallic spines growing from his mucous-covered body.
For images of Glaaki, click HERE and HERE.
Lore: Glaaki came to earth via a meteor impact and currently dwells at the bottom of a lake in England, awaiting the time when the stars are right for the Great Old Ones to reign once more. Glaaki has also been reportedly sighted in other lakes around the world as well.
Glaaki is served by a cult of humans-turned-zombies. The ritual used to create a new undead cultist involves Glaaki piercing the victim's body with one of his metallic spines and injecting a special fluid into the unfortunate person. The person then is transformed into servant of Glaaki, even sharing the mind of the horrid Great Old One. In this fashion, all of Glaaki's cultists actually serve as vessels for Glaaki's consciousness. The cultists serve as an extended body of Glaaki and perform his will.
Despite Glaaki's appearance, the Great Old One is considered to be incredibly intelligent and wise. In fact, Glaaki's cultists have been able to document Glaaki's knowledge and wisdom into a series of books called, The Revelations Of Glaaki. The cultists were able complete there task due to the fact that when Glaaki slumbers the cultists are temporarily separated from the mind of Glaaki and form a rudimentary individuality.
Powers: Telepathy, mind-control, zombie-creating body fluid, and other powers so vast as to cause insanity in mortals by dwelling upon them.
Defense Against Glaaki: Practically none, save the Elder Sign which repels him. Glaaki's cultists fear sunlight and shun it, as it promotes decomposition.