Lin Mu didn't approach the place recklessly, instead prompting to survey it from a distance.
"Let's take a look from the top…" Lin Mu said before gathering strength in his legs.
~CRACK~
The ground cracked under his legs and he soared high up into the sky. His eyes looked over the old damaged structure and saw that it actually composed of three parts. The outermost area was similar to the building he had seen underground, but the other two parts were different.
The second part was located in the middle of the structure and had high quality bricks making up several boundary walls. From their design, Lin Mu guessed that at one time they might have been a few tens of meters high.
But now they were barely five meters tall, most of them collapsed.
Another thing Lin Mu sensed was faint fluctuations of energies. They felt different fromfrom spirit qi and were a lot denser than it. But among them, Lin Mu also sensed something familiar.