The rhythm of Tang Zhen's knocking could only be understood by the cultivators of loucheng city. When they were in a special environment, they could use this method to communicate.
For the cultivators of Lou Cheng, once they used this method, they would be in a desperate situation.
Now that he was in a cage and his powerful cultivation had disappeared without a trace, he could only use this method.
As long as there was a trace of divine sense, they could communicate with each other through space. It was more efficient than this primitive method.
This was the environment. There was no use in being depressed or flustered. It was better to calm down and do what needed to be done.
First of all, he had to confirm how many cultivators of loucheng city were in this strange environment.
If the cultivators of loucheng heard the knocking sound, they would definitely respond, thus achieving the exchange of information.
