Then, it turned into a phantom that even World Overlords could not detect and flew into the cave at lightning speed.
The tunnel in the cave extended diagonally into the depths of the Earth.
Chu Zhou quickly flew down with Dragon.
Chu Zhou appeared in a huge underground space with the Dragon about 100 meters deep.
Almost instantly, Chu Zhou was attracted by a ball of metal the size of a water tank.
The ball of metal was chaos-colored and looked like a huge heart.
On the surface, there were countless mysterious universe engravings circulating.
Most importantly, this heart-shaped metal seemed to be alive. It beat like a heart, causing the Void to tremble.
Chu Zhou seemed to see all kinds of Metal Law Profound the moment he saw the heart-shaped metal.
These Metal Law Profound were usually very difficult to comprehend.
But now, it seemed to be placed in front of him and all his secrets were revealed.