A moment later.
The shouts of killing and pleading for mercy outside the main hall gradually subsided.
Lei Xiaohu pressed his ear against the stone wall, holding his breath, and listened to the sounds from the outside world using the most primitive method.
This place was an escape room hidden beneath the main hall.
The entire escape room was constructed from spirit stone ore, capable of blocking various Consciousness and detection spells, and having excellent sound insulation.
Therefore, the only way to excavate a spirit stone mine is to use the most primitive manual excavation method.
And generally, spirit stone mines are controlled by major sects. This also led to many legendary stories in the Cultivation World starting with spirit stone mines as the origin.
It was usually someone obtaining a magical treasure while digging and rising from obscurity, first by killing in all directions and then being incorporated by a major sect.