The Maw of Demogorgon
Sanity decays where the dual prince reigns over the salt and the shadow.
A massive, pulsating rift-fortress carved into the bedrock where the material plane meets the Abyss. The stone bleeds saltwater, and every corner of the architecture reflects a twisted, dualistic design that strains the mortal mind.
The stench of rotting seaweed and wet fur fills the air; violet light pulses from veins in the walls; a constant rhythmic drumming like a colossal heartbeat shakes the floor.
☠Threat
Demogorgon, the Sibilant Beast, whose two heads compete to devour the souls of any intruders. His presence warps reality, turning reflections into hostile entities and making the very air thick with hallucinogenic spores.
History
Forged by the Mad Archmage Icarus who attempted to siphon power from the Gaping Maw. The ritual backfired, dragging this entire mountain into a pocket dimension where the Prince of Demons now resides, slowly turning the surrounding land into a nightmare of slime and madness.
Encounter Table
CRSilent shadows that move across the walls independently of light sources.
A massive pincer-handed demon searching for intruders.
Vulture demons attracted to the scent of fresh blood.
Rumours & Whispers
The dungeon was not built, it grew from a seed of pure madness sown by a god.
If you look too long into the mirrors in the first hall, your reflection will step out and kill you.
The two heads of the Prince of Demons hate each other more than they hate you.
The very walls of the deeper levels are made of the souls of those who failed before.
Salt water is both the lifeblood and the cage of the beast within.
Quest Hooks
Quest giver: Archmage Vancian
An aging archmage begs the party to recover the Staff of Power he lost when his apprentice was taken by the Maw.
Choice of a legendary item from his vault.
Quest giver: King Alaric
Reality is unraveling in the local kingdom as Abyssal influence leaks through the mountain rift.
Dukedom and 100,000 gp.
Corridor Notes
Walls that feel like damp, cold flesh and occasionally pulse.
Stone carvings that change expressions when you aren't looking.
Narrow streams of salt water that flow uphill toward the boss.
Turn The Maw of Demogorgon into a sheet
A high-res, share-ready sheet you can post or print.