Ghaunadaur (also known as That Which Lurks and The Elder Eye) is a fictional god in the in the Forgotten Realms Campaign Setting of the Dungeons and Dragons fantasy role-playing game. Although officially considered a member of the Drow Pantheon, its followers include oozes, slimes, jellies, outcasts, and rebels. Most of its followers consist of lowly drow outcasts. The Forgotten Realms Second Edition logo. ... The original Dungeons & Dragons set Dungeons & Dragons (abbreviated as D&D or DnD) is a fantasy role-playing game (RPG) published by Gary Gygax and David Arneson in January 1974. ... Drow (pronounced: ) are a species of elf in the Dungeons & Dragons roleplaying game. ...
Ghaunadaur is considered to be highly unpredictable by any standards. It is not always necessary to worship it; sometimes, simply paying lip service is enough to earn a boon from the god. However, this is not often done, as it's equally likely that it will consume or maim the penitent without warning.
"That Which Lurks" usually appears as a reddish-purple giant slug, though it can alter its form at will. Its symbol is a purple eye on purple, violet, and black circles. Priests of the Elder Eye are required to make daily sacrifices, preferably willing sacrifices. If a priest falls behind in their sacrifices, they are required to say a prayer while coating their hand in magical oil and lighting it on fire. If the prayer is good, the priest may keep the hand. If not, then the hand will be consumed by the Elder Eye.
It is generally discouraged for ptiests of Ghaunadaur to be friendly with other priests, however the Underdark is full of strange things. More information on Ghaunadaur can be found in "The Drow of the Underdark," a TSA 2nd edition rulebook.
Although Ghaunadaur is a distinct entity unrelated to the tanar'ri lord Juiblex, the Faceless Lord, or the otherwise unnamed Elder Elemental God neither of the latter two powers is active in the Realms, and Ghaunadaur ha^ assumed both of their aspects within the crystal sphere of Realmspace.
Ghaunadaur's temples are sometimes located in the wilds of the Underdark, far from the influence of cities led by the Spider Queen's priests.
Ghaunadaur assuredly inflicts his wrath on any solid foolish enough to profane his place of power, and some believe that fate of the wizard Shond Tharovin was sealed when the would-be tyrant removed the Living Gem from the temple.
Araushnee managed to imprison the other deity though, and roused to action she, Gruumsh, and her son Vhaeraun eventually brought to her cause a great alliance of many great and minor deities of the orcs, goblins and other goblinoids, kobolds, giants, giant kin, ogres, and other such creatures.
This army of deities, joined also by the savage deity Malar, the ice queen Auril and the primordial evil Ghaunadaur, marched on Arvandor, to be met in battle by Corellon and the rest of the Seldarine, including Araushnee's other child Eilistraee.
However in her goal to wreak horrible vengeance on Corellon and the Seldarine, it was through Ghaunadaur's example of regaining power through the worship of mortals, that Lolth returned herself to her former power and beyond it, regaining her divinity due to the following she gained from the dark-skinned elves on various worlds, especially Abeir-Toril.