This is a music box that belonged to queen Katherine, a great monarch that was adored by many. It keeps all of her memories from her childhood up to the great war that destroyed the kingdom. Katherine's magic has enchanted the music box, which can be only accessed using a key which got lost to time. Should anyone open the music box, it will tell the backstory of queen Katherine and her husband, king Albrecht. It might even reveal where queen Katherine resides at the given moment.