Eleven and the Demogorgon from Stranger Things share a unique connection. This connection is speculated by fans and supported by the series' narrative. Eleven uses her psychic powers to confront the Demogorgon, a monster from the Upside Down, on several occasions. In a significant event, she sacrifices herself to defeat the Demogorgon, causing it to explode into ashes. This act deeply affects her friends, especially Mike, who she had formed a strong bond with.