The Underworld, known also as the Realm of the Dead, is part of the Mists and the realm of Grenth of the Six Human Gods and Raven of the Spirits of the Wild. All newly dead unguided souls arrive here when they enter the Mists from Tyria, where they are judged and sent to their final destinations. The underworld is divided into several sections, many overseen by one of the Seven Reapers or other lieutenants of Grenth such as The Judge Among these sections is the Mad Realm which has been usurped by Mad King Thorn since his death in the ninth century of the Mouvelian calendar.
Before Grenth was the god of death, the Underworld was the realm of Dhuum. 250 years ago, the Underworld was attacked by the former god's army of dryders, ghosts, and Skeletons. This army had ensnared the Seven Reapers and caused chaos in the Underworld, sending souls to torturous places like the Realm of Torment. To aid in the battle, adventurers were allowed access to the Underworld to assist Grenth's forces. However, some arrived to plunder the Underworld's riches. During this conflict, Dhuum regained strength through any death in the Underworld, and eventually broke free of his chains. Though the Seven Reapers and some mortal allies did eventually manage to re-imprison Dhuum, the new bindings were inefficient and Dhuum managed to break free repeatedly from his imprisonment; his current state is unknown.
In addition to this, the constant traveling between Tyria and the Underworld caused the barrier between the two to loosen, allowing Godslost Swamp, as well as other areas, to be overrun with Portals to the Underworld. Throughout Tyria, several creatures from the Underworld can be seen coming from such portals. The most common of these are Nightmares, but often imps and fleshreavers are seen as well.
|With the departure of the Six Gods, the gods' realms including the Underworld have fallen to chaos as demonic entities from The Mists make their way into places such as the Domain of the Lost. In addition to this, Balthazar and Palawa Joko had begun plundering souls from the Underworld, adding to the chaos that Grenth's servants struggle to contain. In a bit of irony, the Mad Realm has seen little change beyond rivalry between Mad King Thorn and his son.|
- Mad King's Realm