This is a manifestation of the Plane of Air created by the mage that imprisoned Gorion's Ward. It is infested with air plane mephits and fiery one to heat things up.
Gameplay[]
It can be challenging with the limited party we have at this point to deal with the various spells thrown by the mephits on the main platform at the north end. The combination of stuns and fire damage can interrupt heals and prevent usage of potions at critical moments. It is however possible to get only one or two and lure them down the path. Another strategy is to get Yoshimo first and take out the fire mephit through backstab as Imoen doesn't have the damage and weapon to do this reliably. Once they're dealt with the bottle with Malaaq can be found in the north-western platform.