A section of the sewers that's been mostly appropriated by the local Thieves' Guild to serve as a base of operations and market. There's some construction happening, some hidden paths, and personal effects for each room that's specific to my NPCs, so feel free to change things around to suit your game. This map was made for the Levels module in Foundry VTT in mind, so there's a little layer to it. (Mostly the pipes.)

From the top down, left to right:

• Necromancer/alchemist's lab; sells illegal potions and poisons for the discerning criminal.
• Disposal room; for disposing of bodies and evidence.
• Purifier; one of several found throughout the city. You can hide the top to see inside.
• Guild master's office.
• Bar/smuggling operations.
• Cistern; black market area with lots of stalls.
• Storage and some construction to expand it.