According to the summary written by the article's editor, the earthquake in Tai'an Mountain might have been caused by the Guangyuan Highway disrupting the area's feng shui. It hadn't been an ordinary earthquake and mudslide; it had also opened the gates of the underworld in that area, unleashing countless ghosts. People in poor health had either been killed by the earthquake or by the yin energy that poured out of the gates. Those who survived had been possessed by ghosts and fled the area as fast as they could. The area around Tai'an Mountain, including the Guangyuan Highway, had become a place heavy with yin energy, where accidents were likely to happen. Digging a tunnel there had been an even greater taboo, so the tunnel collapse had been inevitable. The old man who died in the tunnel had been an accident, while the family of three had been invaded by yin energy, driven mad, and eaten human flesh. Then they'd suffered the consequences and died on the highway.
As I read the analysis, that chilling feeling began to fade a little.
I didn't know whether there were gates to the underworld in Tai'an Mountain, but the yin energy there didn't belong to countless ghosts. It belonged to a single, powerful ghost. Zheng Motian had gone from the Guangyuan Highway straight to the Guangyuan Mountain Resort. The only explanation was that the ghost had been behind it, and it probably had little to do with the gates of the underworld.
Another indication was that I'd felt the yin energy of the Yellow Springs Road for myself. That energy was different from the yin energy of ghosts, too.
I closed the page and looked through the other search results.
There were quite a few articles offering summaries, as well as personal accounts