Eyeless Jack's Mask (Eyeless Jack X Reader)

You were a fourteen year old girl who just like to have a lone time like 12/7 but you couldn't cause you had annoying two brothers: Chael and Danielle. They teach you everything you need to learn even though you go to school as always but not those any mathematical probs (I'm actually stupid at MATH), they teach you how to fight and protect yourself in case that you are in trouble and they are not there to protect you always. One day, you just found out that one of your butler, Simon was dead on the kitchen. Your brother called the police to know what really happen then stumble on something. The police gave you a navy blue mask with black liquids coming out from its eyes sockets. You were gonna tell that police that it was not yours but they already left. Now your stuck with a mask that you nor your brothers own. Could you know who own the mask? Would you even return it when you found out that the mask belongs to the killer who killed your butler.