The Gathering Shadow
The Underthrough is a series of natural caverns that run under most of the city of Sasserine. These tunnels, augmented by man-made sewage systems in the wealthier districts, provide hidden roads about the city favored by the Crows, smugglers, and the occasional abomination.
Caverns of note
- The Rookery – The guild house of the crows is located in a relatively large natural cavern deep beneath Parrot Island. The Rookery is only accessible either magically or by navigating one of a series of sumps (completely submerged passages and caverns) which makes it almost impossible to find by any who doesn’t know the way.