Exploring the sprawling Lands Between in Elden Ring often leads players toward sinister subterranean locations filled with hidden secrets and key quest items. Among these crucial items is the Sewer Gaol Key, a filthy item linked directly to one of the game's most infamous characters. Obtaining this key opens up significant narrative pathways and allows Tarnished adventurers to progress deep beneath the capital city.

How to Obtain the Sewer Gaol Key

To acquire the Sewer Gaol Key, players must interact with the spectral form of the Dung Eater inside Roundtable Hold. However, he will not hand over the key until you present him with at least one Seedbed Curse item found during your travels. Once you deliver the cursed item, he provides the key and tasks you with releasing his physical body.

Seedbed Curses can be discovered in several key locations, with an early option situated in Leyndell, Royal Capital. After acquiring one, return immediately to Roundtable Hold to speak with the NPC and claim your key. This step is mandatory before you can open the designated cell door in the subterranean depths.

Navigating to the Subterranean Shunning-Grounds

Once the key is in your inventory, you must travel down into the Subterranean Shunning-Grounds beneath Leyndell. Accessing this dark maze requires finding a street-level well located within the lower plaza of the capital city. Descending through the well leads directly to the Underground Roadside Site of Grace, which serves as your main exploration hub.

From the Underground Roadside, navigate northeast through a grate in the floor into the sprawling sewage channels. Proceed past the hostile rats and giant poison sprouts until you locate a ladder heading upward. Climbing this ladder brings you into a hallway that leads directly to the locked cell.

Using the Sewer Gaol Key and What Happens Next

When you reach the locked iron door at the back of the passage, approach it to prompt the option to use the Sewer Gaol Key. Unlocking the door allows entry into the cell where the physical form of the character resides. Interacting with him here advances his complex storyline and unlocks unique potential quest outcomes.

Be cautious when entering this area, as several dangerous Fingercreeper enemies lurk near the cell entrance. Clearing out these threats beforehand ensures you can converse with the NPC without sudden interruption. Freeing him alters your ongoing campaign progression and unlocks additional choices for the game's finale.