Black Crystal Stone

In the symbols etched into the wall, Han Sen saw something with which he was very familiar.

The carved symbol was in the shape of an egg. It looked like a pigeon egg with a thousand stars floating inside it. It looked like a small universe that existed within.

Although it was a simple line of a symbol, at this size, Han Sen was far too familiar with it. Back in the sanctuaries, he had killed a sacred-blood black armor bug and received the mysterious black crystal stone. At this shape and size, what he saw carved into the wall was precisely the same.

After that, Han Sen had absorbed the black crystal stone's shell. There was a black crystal armor inside the black crystal stone. It was the black crystal armor that pulled Han Sen into that world of kingdoms.

Now, on the wall, he saw a symbol of the black crystal stone. It was extremely similar. He was super shocked.