The Devil's Cave

It was obvious that Wang Heng accidentally stepped into the natural formation and then disappeared.
"Boss Jiang, what should we do now? Will Wang Heng be in danger?"
Yang Meng asked worriedly.
"Normally, if you fall into a formation, you will be trapped, but you will never disappear. Therefore, the invisible formation here should be a formation comparable to an illusion. Behind these two trees, it should not be as simple as the scene we see. I am afraid there is something else, but it...