Avin, Mile, Douglas, and Archem travel there to find the hiding Meefas so they can help lift the poisonous swamp fog from New Borun. When they reach the end of the cave, they find the Meefas cornered by monsters; two Big Beatens and two Thin Blood Bats. They defeat the monsters and save the Meefas, who then purify the air in New Borun.