On this continent, spirit energy was the most important thing.
Whether it was human, spirit beast or medicinal herb, all of them lived on spirit energy. But the spirit energy on this continent was now too thin to form spirit medicine, which was why Yun Luofeng's spirit medicine was so powerful.
"Master," Xiao Mo clenched his teeth and said with a quaking voice, "if spirit energy is dense enough it will form a fog, but generally speaking, a spirit fog is green. But this fog has turned black, which means that the spirit energy here is toxic!"
If it were someone else, they would rush forward unguarded, and probably end up dying of poison.
"If you want to go through this black fog, you have to hold your breath. If you accidentally inhale any of it, run forward as fast as you can."
"I see."
Yun Luofeng turned her eyes to the black fog and withdrew her aura. She held her breath and even the pores of her body were closed at this moment...