The Ghost Of My Past

Short story that I wrote. Basically the story behind it is that a girl used to live in the house she's visiting and her and her sister were playing in a room upstairs and she accidentally knocked her sister out the window..so she visits the house every year on the anniversary of her sisters death. This year is the 20th anniversary and her sister wants revenge. It's probably not clear in the story but yer.
Enjoy >.<