The Pits of Slime used to be a thriving civilization, and Dissolution was the prophet of their god.  When the city was overtaken by its current residents, and their god became the Slime God, only Dissolution survived, becoming a tremendous mass of acidic ooze.  He retained his intelligence, but is filled with hatred for anything that can hold a form.

The Pits of Slime used to be a thriving civilization, and Dissolution was the prophet of their god.  When the city was overtaken by its current residents, only Dissolution survived, for he alone turned faithfully to the Slime God.  Dissolution become a tremendous mass of acidic ooze, yet retained his intelligence.  He is filled with hatred for anything that can hold a form.

The hallway to the four hells, guarded by Geryon.

The hallway to the four hells is guarded by Geryon. Heros who prove their
worth in the vestibule and blow Geryon's horn, may explore the different
regions of Hell: Dis, Gehenna, Cocytus and Tartarus.
Portals to the Vestibule of Hell are found abundantly in the deeper parts
of the main dungeon.

Pan
Pandemonium, colloquially known as Pan, is an infinite realm of pain and 
suffering. Pan contains four special runes, as well as generic ones, in 
addition to lots of loot. All these treasures are guarded by demons and
cruel Pan lords. Many a hero, confusing confidence with megalomania, died
unsuspectingly in the barrage of torment and hellfire.
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Abyss
The Abyss is a truly bizarre place, everchanging and twisted. It is filled
by all sorts of monsters, mostly of demonic nature, whose common aim is to
feast on intruders. It is also the garbage dump for many sorcerors, who 
delight in sending would-be champions like you to these proving grounds of 
madness. Reportedly, there is some structure to the chaos, as Lugonu seems 
to concoct schemes around this place and its denizens.
The Abyss can be purposefully reached through portals in the deeper levels
of the main dungeon.
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A region of the dungeon complex, safely locked away and referred to usually by
madness, frenzy, lunacy. Only the most demented adventurers would dare to

A region of the dungeon complex, safely locked away and referred to usually
by madness, frenzy, lunacy. Only the most demented adventurers would dare to

Zot is five levels deep.

Zot is five levels deep and can only be entered when carrying three runes.