Victorian Advent Calendar

Effects
A large, Victorian dollhouse-esque structure with twenty four doors leading to different compartments, where the compartments are all windows or the front door of the house. Active only around the holiday season, all the doors and windows are locked until their corresponding day happens. Opening a door (theoretically) releases an evil spirit who will switch locations with the opener's soul. The only way to reverse the switch is to have the possessing evil reopen the door. Anyone else opening the door will only switch the soul within the compartment with the soul of whoever opened it. Should midnight pass without the evil being put back in the compartment, the door will lock and be unable to be opened until the next year. The twenty-fourth soul, who is held in place by the front door of the calendar, is said to be the most terrifying one. However, the most important thing to realize is that there is no way to know whether the soul inside a compartment is one of the original twenty-four or a switched victim, so the evil could have already been released.