The Vessel of Pride, inhabited by the demon Marie Annette.
Originally a single wall mirror, it was divided into 4 smaller hand mirrors by Irina Clockworker. Eventually one of the mirrors were found by the twins, Alexiel Lucifen d'Autriche and Riliane Lucifen D'Autriche, while a second one was later snuck by Ney Phutapie, leading to the possession and tyranical reign of the princess.