
This is the second to last map of Finbarr’s Marsh. The crypts will be up in a few days.
So let’s talk about the sewers. First, I need to mention elevation. The underground level is above this, which means it’s fully above the water level. Why? The island has steep sides and the ground level is about 15 feet above the water. With that out of the way, let’s talk about the locations.
The kuo-toan temple on the left predates the city and was in ruins by the time the first settlers showed up. The passages into it were eventually blocked off with stone because, well, no one wants an open passage leading right under their castle.
The Drainers are human. They’re poor and live in the sewers, subsisting on mushrooms and selling their excess fertilizer to farmers in the area. They smell. But everything down here smells, so it’s fine. The authorities know about them and have told them they can stay. But no more digging.
The Theives’ Guild’s bread and butter, unusually, isn’t theiving, but dealing in smuggled goods. They have an arrangement with some fishermen to bring goods in from cargo ships, a few crates at a time, evading the customs tariffs and any laws concerning contraband. They buy the goods from the fishermen, then sell them around the city at a tidy profit. They’re secretly working with one of the wealthy trading houses as well (the De Barras). They do also steal stuff. Sometimes.
The sea trolls (scrags) aren’t a huge priority for the city guard, although they can be troublesome. And the entrance to their lair is small and completely underwater, which would make dealing with them an enormous pain.
The Witch of the Pipes is whoever you want her to be.
Here’s a version without annotations and a black and white line art version.