Han Lingsha himself said that it was a group of petty thieves who didn't know how to do it. They destroyed the interior of Huainan tomb without authorization, which led to the change of geomantic omen.
The ancient tomb changed from a blessed place to a fierce place, resulting in many ghosts. . That is, the scene they just saw when they arrived at Huainan Tomb.
There is no clear hint in the plot that this is related to rumors. .
That's it ~