History
The Momenstross Clan were beings which feasted on magical energy. Egor of the Momenstross Clan took the form of a little girl and attempted to have Wong invite them into the Sanctum Sanctorum so it could eat. After several attempts, Egor was finally invited in where it took its true form, but Wong revealed he intentionally invited Egor in so he could slay the creature using the Quill of Genoe.[1]