C499 Teleportation Array of the Ancient Era

Ling Hao walked along the tunnel, and would occasionally look around. According to his deductions, this place belonged to the buildings of the Primordial Era.

In other words, he was in the same era as him.

That era was much less deceitful. Millions of creatures, in order to cultivate, established their own Immortal's cave. It could be said that there were no tigers within the mountains