The assassin murdered

There is a new girl in a boarding school on a secluded island, but she has a very dark secret that not even she knows it. Many bad things start to occur when she arrives. Lap coats get set on fire by her gaze, birds speak to her, ghosts wonder the school grounds that only she can see them, portraits move, but a very old book bound by human skeleton and a sapphire ring that catches her attention. A mysterious man who looks after the horses approaches her one day with a very mysterious parcel, but the man disappears the very next day, as if he never existed in the first place. She has been given one mission... To survive an encounter with a very sharp, manipulative and stone-hard head mistress. Will she be able to find out the secret that is trapped in the book and the sapphire ring? And will she find love along the way?