The Mistress of Death was once engaged to Death. Yes, THE Death. He broke her heart, claiming his job was more important than their relationship and he needed a "break." Whatever that means. The Mistress decided to visit the Hotel after learning about its frequent deaths, hoping to run into her old flame on the job. She wants revenge! All of her darkness powers are harnessed in the necklace she wears all day, every day (she's wearing it even if you can't see it) #GluonGuests