Under the Lin Yan family's ancestral courtyard house, there is a cellar that is never allowed to be opened. Until the night when my parents disappeared, there was a knock on the door in the cellar. I walked down with a kerosene lamp and found that the cellar wall was gone, replaced by an ancient neighborhood shrouded in fog and day and night were reversed. The "neighbors" here waved to me warmly, but my grandfather's suicide note was written in blood: "Remember, they are not human. Do not go out after dark."
