I am planning on making a mystery novel soon focusing on a high-school aged detective ala Nancy Drew, except in the POV of his journal as he is investigating the case. So far, I have the setting of the story as an old Southern plantation where the recent owner, an elderly Southern gentleman and Bourbon Baron Buford Ellis meets his untimely end due to a brick falling from the bell tower of the chapel of the house and striking him on the top of the head, killing him instantly. At first, it looks like an accident, but a witness comes forward and states that he saw the brick fly out of the bell tower, as if tossed and strike Buford but claimed to see no one in the tower due to the roof, which casts much of the towers inside in shadows. This statement made the police suspect murder. But, when they went up to investigate the tower, they discover that the entrance locked from the inside and that there was no sign of everyone ever being in the tower. This statement leads to an old rumor boiling back up that a violent and very angry poltergeist haunts the house and that the house and the land around it are cursed due to its sordid past. Throughout the story, the MC encounters increasingly dangerous paranormal phenomena as he investigates the murder. Eventually, it is revealed that there is a rumor that there is Confederate Gold hidden somewhere in the house and that the culprit is faking the haunting to scare everyone away so they can search for the treasure itself. I know these types of stories have been done many times before. So, may i have some advice on making this story unique from all the other one out there?