Undercity
Beneath the Streets
Even though most Ravnicans think the city begins at ground level and stretches upward, the part of the city that lies beneath the streets impacts the lives of everyone. Immediately underground are the city works, such as the sewers and the transit system. Below the complex network of tunnels and passages that make up the city works lies the undercity— a realm populated by creatures that shun the surface world.
City Works
The Izzet League is responsible for constructing and maintaining public works, including sewers and other pipe systems. Many members of the Golgari Swarm live or work here, farming fungus and scavenging for valuable trinkets in the muck. Orzhov crypts and vaults, Dimir hideouts, and Simic laboratories can also be found in the city works.
Sewers
A vast, winding sewer network runs under the Tenth District, lit by continual flame spells. Some of the tunnels are simply storm sewers, meant to carry rainwater (and the debris it washes from the streets) into great cisterns, where it is purified and sent into the pipes in the plumbing system that serves Ravnica’s nicer neighborhoods. Others carry waste and refuse out of those neighborhoods, depositing it in different cisterns or dumping it into the subterranean oceans of the undercity.
Pipe Tunnels
Around the sewer system, smaller tunnel networks carry steam, distilled magical energy, and water to various places throughout the city. These passages are large enough for a humanoid to walk through but are often quite uncomfortable, filled with impure air and stifling heat.
Transit Tunnels
Magically charged tracks line the floors of tube-like tunnels that send vehicular constructs to major locations in the Tenth District and beyond. The tunnels open into small stations that have staircases leading up to the surface.
Crypts
Ancient resting places lie in secret chambers below the surface of Ravnica. Many of them have been magically warded to prevent unauthorized entry. Some of these sites are homes for restless undead or gathering places for thieves, smugglers, and other criminals.
Undercity
Deep below the Tenth District lies a vast, thriving community of folk who have no desire or choice to live under the sky. Here, the Dimir, Golgari, Rakdos, and Simic hold sway in the caverns, causeways, and bodies of water that grace the darkest depths.
Nightveil
The sprawling residence of many of the House Dimir elite, parts of Nightveil overlap the Tenth District in the undercity. An extensive system of natural caverns houses high-walled mansions and sunken crypts that have a grand, sinister motif. Patrolling specters and other incorporeal undead make it difficult for the unwelcome to enter.
Duskmantle
The Dimir guildhall is protected by memory wards (glyphs of warding that store modify memory spells) to ensure that few know of its existence. Those who are called there never remember what transpired, beyond what is necessary. Most assume that the place lies somewhere within Nightveil, but it could lie anywhere in the undercity.
Korozda
Also called the Maze of Decay, Korozda is an arched subterranean cathedral surrounded by fungal hedgerows and moss-encrusted ruins. In its center is a great amphitheater where the most important issues are brought to the Golgari’s attention. Penvar, the Hanging Keep, is a castle fixed upside down on the ceiling above the entrance to Korozda. Its soldiers, predominantly the insectoid kraul, prevent any unauthorized visitors to the Golgari stronghold.
Rix Maadi
Known as the Dungeon Palace, this is the guildhall of the Cult of Rakdos, and the lava-filled lair of the demon himself. An immense, crumbling, red stone staircase called the Demon’s Vestibule begins the journey from the Smelting District down into the depths, treating travelers to terrifying images depicted on banners as they descend. Farther down, the temperature rises and the passage eventually opens up into the Festival Grounds, where the bloodiest performances of the Rakdos and their torturous equipment are on display.
The Undersea
Rivers, lakes, and oceans run deep below the surface of Ravnica. Several of them connect to the Simic habitats known as zonots. They are also used as thoroughfares by aquatic races and monsters.
Type
Underground / Vault
Included Locations
Characters in Location
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