human
Make a concise location description of a gloomy scene inside of a sewer with a conduit.
assistant
An odd coppery scent, reminiscent of a forge, underlies the stench of sludge and refuse. The combination is potent and heady, occasional faint whispers of air carrying the odor eastward. Bubbles gurgle along the conduit walls, exasperated from something unseen in the murk, adding their own distinct smell to the thick air.