Nightmare Experience of Sumi Story

When Sumi was a kid, her grandma used to tell her spooky ghost stories. Those tales stuck with her, making her scared of ghosts, even though she'd never actually seen one. Once, she went to visit her uncle's house in a place called Chittagong for a few days. The house was up on a hill, surrounded by lots of trees. One evening, after having dinner, she went to bed. But in the middle of the night, she suddenly heard a really high-pitched scream. This scared her so much that she woke up instantly. The sound came again, and she felt really scared. Remembering all those ghost stories from her grandma, she thought maybe it was a ghost making that sound. She was super frightened and started crying. She couldn't sleep at all that night because that sound kept coming back again and again, making her really scared and anxious.