Scary Girl In The Park

I was new to Lucknow. we lived in a building where only a few people lived. near the building, it was a huge park which can be seen from our building. Days past and one day I ask my mom to let me go to the park alone. My mom said, "OK". I left the home and went to the park. When I was playing I saw a shadow near a wall. I thought that someone is pranking on me. But when I went there the shadow immediately disappeared. I was a little scared but then also started playing. When I was playing a girl kid I thought she is new but everyone said that there is no one they can see. I again thought of that shadow that I saw near the wall. And then quickly towards my home without looking back. I shut the door quickly. And drank some water. I told my mom what happened and then she said me to relax. we had dinner and slept. meanwhile, I saw from my window towards the park and then also that girl can be seen in the dark in a red dress. I was very much scared and then I ran quickly towards my mom's room. I knocked on the door Badly. My mom opened the door and said me to relax. On that day I slept with my mom and dad. And after that, I have never been to the park alone.