The two best friends

Once upon a time there used to be two best friends they used to do EVERYTHING together such as playing,eating and much more. One day there parents let them have a sleep over. In the middle of the night they both had severe nightmare...they both wake up and planed to have a midnight feast.One girl runs downstairs and grabs a snack as quick as possible and runs back up.The other one takes her time downstairs and notices a rattling sound in the cupboard..her hands were shivering as she was about to open up the cuboard.Suddenly she heard a scream from upstairs.She slowley walked upstairs.She checks on her friend but she wasn't there anymore.She got really scared and hid under the covers.The night stayed silent untill she went to the bathroom the door had unusally had locked by itself.She tried to unlock the door but it just wasn't unlocking she pushes the door open and saw he friend with blood stains on her shirt she hides from her friend but then her friend told her it was all a prank.The girl got very angry at her but suddenly  the heard something coming from downstairs and the friend had to do with it...