Shadow Queen

The Shadow Queen is the final boss of Paper Mario: The Thousand-Year Door. She is an ancient, 1,000 year-old demon who once threw the world into the depths of terror. Years ago, four heroes rose up against her, and used the power of the Crystal Stars to seal her behind the Thousand-Year Door. Many years later, Sir Grodus, the leader of the Secret Society of X-Nauts, planned to obtain the Crystal Stars so that they could resurrect her, and use her powers to conquer the world.