The First Step

This is a short horror story I've written based on a story variously called "I'm Coming up the Stairs" "The Voice" or "I'm on the First Step"
I used to have nightmares about this very story, and I decided to "cover" it,  aging up the characters and making the story take place over an email conversation between two women in a LDR.
Let me know your thoughts! This story is still somewhat of a work in progress.