the circular barrier was restored. Qin Sang stepped on the lava and flew upward, with the barrier directly above his head.The lava flowed turbulently, much like the Nine Cascades of Wulingjiang, surg...e the source of smog.But Qin Sang racked his brains, unable to understand what gray qi was and why it had targeted him.Qin Sang began to urge a wisp of true essence to touch the gray qi, but whether i...