This post is a follow to a couple of previous posts during Exalted's Creation into a D&D setting.
The cosmos had not been constructed to parse the deaths of one of its creator Titans nor were the spiritual algorithms of reincarnation equipped to handle such complex beings. When the Titanomachy led to the exactly this outcome, Oblivion, a plane of negative energy, was manifest.
Theories differ as to the nature of this negative energy plane. Some believe it was formed by the collapse of the abliving yet undying souls of the slain Titans under their own gravity. Others hold that this collapse merely created a whole in the fabric of the cosmos allowing access to pre-existing Oblivion. Either way, the Underworld, a dark shadow of Creation, was generated on this puncture's event horizon.
The pull of Oblivion drew dead souls to it and kept them from the stream of Lethe, cosmic reincarnation function, creating ghosts and other undead for the first time. These creatures of Oblivion began to plague the mortal world. Most fearful of all of these are the Deathlords, powerful souls granted power by the Neverborn, the undead Titans, to serve as their agents in Creation, to prosecute their war against the living world.
The Deathlords often rule Shadowfells, places where the Underworld bleeds over into Creation, with their puissant soldiers, Deathknights. Thirteen Deathlords are believed to exist. Known Deathlords include Mask of Winters, Dowager of the Irreverent Vulgate in Unrent Veils, the Whispered One of the Rotted Tower, and The Count of Ravenloft. The last has the distinction of being the only lord to have a Deathknight rebel against him, the Knight of the Black Rose.
35 minutes ago