According to the creation myth of Skylathar, Obanastre was the world before the Nyx disaster.
Not much is known about Obanastre, not even from a myth point of view, but whispers in the wind tell tales of individuals, who through cunning, skill or pure coincidence, managed to avoid destruction.
Some even whisper that a few elves, who survived that day, still lives today and walk amongst the people.