"You and I might be the same, but our motives are completely different."
– Void Empress
The Void Empress is an alternate version of the original Astral Mother, She comes from a Different timeline what kind is unknown along with a lot of other questions. She has sworn to make the Astral Mother pay for taking her kids.
Appears to be wiser or smarter than the Astral Mother, The Void Empress is pretty unknown as of right now, but appears to share most traits with the Astral Mother.