Deep underground.

This rock wall was close to the underground river, like a screen, blocking the way.

Apart from the howling of the cold wind, there was no other movement in the surroundings. From the various traces, it was also very deserted.

However, perhaps because of the rock wall, the evil Qi here was particularly strong. The surface of the huge rock layer, which had formed after many years, had long been eroded and riddled with holes. The air flow that was set off when a person walked past would cause the air to flow down.

"This place is rich in baleful Qi," Fan Ping said."Few people usually come here. Even when the sect-level patrollers are patrolling, they would sometimes neglect this place. If they cultivate here in secret, they won't be discovered so easily."

PEI Ling nodded slightly. The murderous aura here was indeed very serious. He had only walked for a short while, but he could already feel the cold yin energy continuously permeating his body, trying to corrode it.