There's a Ghost Outside the Door

If you dare to read this book "The Ghost Outside the Door", I advise you to turn on the lights first—— It's not that I'm trying to scare you. What's written in the book is not a story, but a "real taboo" that people in the mountains dare not tell outsiders. Don't look back when you are reading a book at night. If you hear footsteps behind you... Don't panic, maybe "they" just want to take a look.