the lina and dark

lina was a high school student. she live with her grandmother. one day lina was studying alone in her room her grandmother was went to store. and lina was alone at her home. suddenly she heard a knock in the door she went to open the door but nobody was there. and lina went to study again. and once again the knock was repeated and she went to her door and saw from the down side of the door which has some place to see and lina was so shocked after seeing because she saw a two lights in the dark seeing her and it was also so dark around her lina was scared and went to her room. and knock was heard again this time lina's grandmother voice was heard so lina went to open the door she told to her grandma everything but lina's grandmother was laughing and told that it all was your imagination and lina went to study and the knock was not heard again. after 5 years lina went to her friend's home her name is sitara she went to watch a movie with her friend they were best friends and lina was watching the movie and sitara went to bring snacks and then lina was heard the same knock again and she did the samething she was saw from downside of the door and the same thing there was a two lights and she was scared and it was the sound of sitara and she ran out of the house and went to the home and knock wasn't stopped and lina was died there without opening the door