In the vast land of China, Gansu is like a bright pearl, embedded in the northwest border. This land has majestic natural scenery, profound history and culture, and my hometown in Gansu is a mysterious place full of strange things. When I was a child, I heard weird things passed down by the elders in my family. Now that I think about it carefully, some of the incidents are very abstract and cannot be explained by science. Some of the incidents are just made up to scare us so that we will not go to dangerous places when we play, but most of them are memories of our beautiful childhood.