章 467: Chapter 466-another top-grade cornerstone

It didn't take long for Tang Zhen to complete the exploration and cleaning of the five passages.

During this period of time, he found more than a dozen human-shaped monsters in a secret chamber. When they attacked him, they were easily dealt with by Tang Zhen.

After moving all the items in the secret room, Tang Zhen released his mental energy and tried to sense the location of the gray fog monster.

Unfortunately, after searching for a long time, he didn't find anything.

It was unknown what kind of method this gray fog monster used to completely conceal its aura. Even Tang Zhen, a four-star horde leader with incomparably powerful mental energy, was unable to discover any traces.

The gray fog monster could obviously sense Tang Zhen's powerful strength. Therefore, it had fled here in a panic to avoid Tang Zhen's pursuit.

Tang Zhen faintly had a feeling that it would not be an easy task to subdue this strange monster.