Tang Zhen could not help but be slightly stunned after seeing this strange scene. He also had a trace of anticipation for what would happen next.
If he was not wrong, this mysterious passage seemed to be connected to another world. However, it seemed very unstable and could collapse at any time.
If it was just entering the other world, Tang Zhen would definitely not be surprised. This was because for a national-level building, entering the other world for a battle was only an inevitable mission. There was nothing to make a fuss about.
However, the passageway in front of them was somewhat unusual.
When Lou Cheng invaded the other world, he needed the cornerstone platform to open the plane transmission channel to send Lou Cheng and the cultivator over. If this step was missing, the cultivator Lou Cheng would not be able to leave the world of Lou Cheng.