According to the Design Notes, there was a part in the Book of Lore that talked about how the Mother of All Monsters was sealed away by Twilly. The activation of all 13 lords via the 13 Lords of Chaos' summonings of all 13 Chaos Beasts may result in the resurrection of the Mother of All Monsters. She is mentioned [tel:1000000000000 1000000000000] times in: Following Drakath's defeat, the Queen of Monsters appears on Lore where her appearance ends up warping the landscapes of all of Lore. She then makes her plans to raise the Elemental Titans from across the shattered continent of Drakonus.