The oracle bone coordinates of the bronze steering wheel point to the middle line of the South-to-North Water Diversion Project, laying clues for the subsequent "relationship between time and space anchor points and water conservancy projects"; the space-time distortion characteristics of the luminous stone echo the ancient rock paintings in the tunnel, suggesting the secret connection between alien civilization and the history of the earth; the abnormal situation of the last train traveling in the opposite direction indicates that the disappearance is not an isolated incident, but the beginning of a larger-scale space-time disorder. (Purely fictitious, any similarity is purely coincidental, please do not take it personally)