It is impossible to return from the cavern in Galseah where the Winged Twilight resides without jumping, which is problematic due to the side quest where two NPCs join the player for hunting daedric cultists. Due to the poor AI in Morrowind, this causes them to get stuck in this cavern. To resolve this, the staircase leading there needs to be extended all the way down to the floor, but it currently ends in a platform slightly above the floor. The platform is located at the listed coordinates.