Demon Universe

The parallel universe that has become known as the "Demon Universe" was first created by Hafthure and initially bridged the Abyss and Thogros.

Construction
After the Fracture, our world ran parallel to another. Hafthure's spouse Ashima ventured outside of their marriage to couple with Krulem and conceived monstrous offspring. To separate them from everything that was good in the universe, Hafthure constructed the demon universe between the Abyss and Thogros, and placed Ashima's children within it. To separate the demon universe even further from his, he also constructed the pocket universe of Formin, a finite world that served as a border between his reality and theirs.

Cosmic Connections
The demon universe lies between Formin and the Abyss. While it has never been recorded for Thrakr demons to cross en masse into Formin, it has been shown possible to walk from the demon universe to the Abyss by the Demon Queen. She and her mate first came into the demon universe from the Abyss by walking this path. Darren later described this path to Jackson, allowing him and the other consorts to escape to the Temple of the Grotesque.

Generally, the inhabitants of the demon universe find it most enjoyable to enter Thogros and torment the native population. Thanks to Darren's truce, demons stopped plaguing mankind after a second invasion. They did, however, continue to invade the Thrakr world until it's destruction by the Fahamara.

Portals
Demons who cross from this universe first pass through a nondescript portal, emerging as ethereal beings who are then drawn into a second component which is somewhere nearby, resembling a tornado of meat and bones through which the apparition takes a physical body. As the Thrakr and humans found, as long as the portal remained open, a demon's body could be destroyed only for the ethereal portion to reassemble it's physical body. The portal itself was always nearby the tornado, and could be shut down by sacrifices, or by someone carrying enchanted jewels crossing through to the demon universe as was done by the Prime Magician as well as Ruolit, Nyser, Sherin and Trevesk.

Design
The demon universe bears much resemblance to our own, from a certain perspective. Unlike Formin, a never-ending plane, the demon universe consists of planets and solar systems, much more tightly clustered than in Thogros, perhaps. Each of these zones can be populated by specific types of monstrosities.

Several people have managed to survive for extended periods of time in the demon universe, including Trevesk, Ruolit, Sherin, Nyser, the Prime Magician, Koryu and the Guardian.