The ancient books collected by the 12 Divisions over the years did not document any relevant records of the black fog. It was like the demonic qi cultivated by demonic cultivators, but it was different.
Bai Ze was a demonic cultivator, so he knew a lot about demonic energy.
"It's not demonic qi. The demonic spirit qi can't be like what you said. It's a ball of black fog that can be controlled at will and make people disappear instantly."
If they were so powerful that they could instantly change their appearance, the demonic cultivators of the five countries would not need to hide in the Fallen Demon Forest. They would have long become the rulers of this continent.
After listening to their description, Bai Wan's heart skipped a beat as if she had thought of something.