The Marsh of Oblivion is the ninth dungeon on the continent of Bermesiah and is the ninth one encountered in the game.
The Grand Chase enter the Marsh of Oblivion (possibly due to a request from Kanavan), a dark, barren area where it is said that people who enter the place never come back out. In addition, the marsh produces a foul scent, hindering the Chase's progress.
The source is soon located: Elizabeth, a Memory-Eating Troll. The odor emitting from the Troll appears to be extremely disgusting, but is soon slain.
Normal (Level 16-18)
Champion Mode (Level 19-21)
Elesis: The Marsh of Oblivion...So no one who enters the marsh ever returns alive, is that right?
Lire: Yes. The villagers are all certain some vicious monster ate them all.
Arme: Ugh, I hate this. I abhor places like this.
Lire: The fog and this foul smell are really unbearable.
Elesis: This stench seems to be given off by those sneaky looking slime balls over there.
Arme: Ewww! So gross! Get away from me!
Elizabeth: *Slosh! Slosh!*
Elesis: Ugh...this smell is giving me a headache...
Lire: I think that smelly monster is the one behind all of this.
Arme: Ahh...I'm so dizzy, I can't use my magic...
Lire: Ladies, snap out of it! We can't lose our resolve here, not now!
Elesis: She's coming!
- On the loading screen of the Marsh of Oblivion, there is a typo which calls it the Mash of Oblivion.