Hearing Zhao Hai's words, Lu Li could not help but be stunned. He then said in a deep voice,"No one knows when this nine revolutions cave was formed or how long it was there. No one knows what's in the cave. They only know that they can't go in. Those who went in all died. No one came out alive. The nine revolutions cave can only be entered in the outer area. There are snake-shaped demonic beasts all year round. Those rogue cultivators are very familiar with the outer area of the nine revolutions cave. Because they would often go to the outskirts of the nine turns cave to hunt those snake-shaped demonic beasts, and get some snake galls, skin, bones, and other things."