When Zhao Hai heard what the two ghost cultivators said, he didn't say anything and turned to leave. He had already suspected that the changes in the underground maze might be related to ghost cultivators. Otherwise, even evil or devil cultivation sects would be wary of the tyrant's blade school's reaction and wouldn't come to the underground maze to create the ghost shadow gang.
The reason why Zhao Hai believed that the changes in the underground maze were related to the ghost cultivators was mainly because of the changes in the individual cultivators. It seemed that someone had used some kind of method to forcibly increase their strength. From the expressions of the individual cultivators, it could be seen that this method was definitely not legitimate. If it was not supported by a large force, no individual cultivator organization would have such great power and pressure. All of a sudden, so many rogue cultivators had their strength increased.