"Dangerous creatures dwell in the Fetid Swamp. If we have any hope of cleansing the evil that festers in the Dark Wood, we must start by cleansing the monsters that lurk within."
- A bounty posted by the Sisterhood of the Sightless Eye(src)

The Fetid Swamp is a marsh in the center of the Dark Wood zone in Diablo Immortal.[1]
Lore
In the Fetid Swamp, light doesn't reach the floor, and dense fog permeates the air above the dark water.[1] Dangerous creatures dwell in the Fetid Swamp,[2] and they drag unwitting victims to their death.[1]
After the defeat of the Countess, the Sisterhood of the Sightless Eye made efforts to cleanse the swamp of monsters. To this end, they requested aid from adventurers in Westmarch.[2]
In-game
The Fetid Swamp is a Dark Wood zone in Diablo Immortal.
Monsters
- Bloodsworn Archer
- Bloodsworn Oppressor
- Bloodsworn Spearwoman
- Decayed Ichthid
- Frog Demon
- Priestess Vassarici (super unique)
- Thorned Hulk
- Volatile Spider