Cyrog

Cyrog was an ancient mind flayer settlement of the Underdark.

Description
The ancient cavern was described to be dark, twisted, alien, and covered in slime. A huge pool lay in the settlement, containing an elder brain, also known as Cyrog.

Government
Cyrog was commanded by the elder brain, Cyrog.

History
Circa the late 15 century DR, mourning mind flayers gathered in the city, as their elder brain had died. Later, Orcus himself manifested and resurrected the elder brain, shocking the illithids of Cyrog. The elder brain told them to follow it into undeath.

Appearances

 * Adventures
 * Out of the Abyss