The party backtracks to the point they entered the sewer tunnels and trek west. After some time the solitary tunnel they travel opens into a large room. Not cavernous, but tall enough that they cannot reach the ceiling.
Some searching soon reveals a set of iron rungs set into the side of the stone wall. As they climb, Blackbird McAllister takes note of the particularly pungent odors rising from the water to the top of the room. It almost chokes the breath out of him. Akasha too it would seem as she is scurrying to the top of the iron ladder quickly.
Akasha finds the top of the ladder first, and presses up on the hatch she finds there. The door gives way easily, and bright light pierces the darkness of the sewer passage.
The buildings lining the narrow street seem to lean inward, ready to topple onto you. Each successive level leaps another foot or two toward the opposing side. A thin trail of sewer water runs the mid line of the street, and trickles toward a drain.
A large barrel sits on the corner of the street. A merchant's cart is peeking around the corner, just making it's large wheels visible.
The busy street is filling with merchants, mariners, and maidens. Everyone is setting about their daily routine.
North: Leave the narrow side street for the busy thoroughfare.
Down: Drop through the hatch and climb down to the Sewer.