Chapter 637: A Small Yang Stone!

With that step forward, a large amount of black smoke spread out from Su Ming's body. The aura of death from the black smoke was incredibly thick, and it was enough to make all those who saw it feel their hearts trembling in shock. No one would know what would happen if they touched it.

The indescribable pain disappeared when Su Ming walked away, and the cave abode collapsed with a bang and turned into ruins, though there was still a thick aura of death surrounding the place. Almost at the same time Su Ming disappeared, numerous long arcs swiftly closed in on the ruins, and the person in the lead was Shen Dong. Right behind him were all of the powerful Immortals who had descended in Evil Spirit Sect and were currently residing in Thousand River Valley.

"What great aura of death!"

"Who was it? We couldn't see his face clearly just now, but the thickness of this aura of death is terrifying. Could he be a heavenly corpse type monster?!"