The Supreme Grand Elder's heart surged with towering waves. Even the information obtained from Soul Searching Cultivator Du—that Huiyan Hall might have higher-ranking hidden agents still lurking within Returning Home—could not calm him.
The Supreme Grand Elder had also secretly discussed this matter with the Chief Master of the headquarters. In the end, they had narrowed it down to several people. These people had either spent long periods traveling outside in the past, or had privately voiced dissatisfaction with Returning Home.
At the same time, all of them held considerable authority. Even under the strict controls of later years, if they put their minds to it, they could still arrange for people to enter Returning Home.
These people were also the main targets to watch in this operation. Yet the Supreme Grand Elder had never imagined that the late-stage Tribulation Transcendence Realm cultivator—or even the Huiyan Hall Master, someone of his own rank—would be within Returning Home!
The three current ancestors of Returning Home knew one another inside and out. They had spent far too many years together; no matter what, none of them would have thought the others might be problematic.
Even when suspecting that someone among the Tribulation Transcendence Realm cultivators at the headquarters had a problem, the Supreme Grand Elder and the Chief Master had believed it might be that person's deputy hall master or elder who had infiltrated them...
But now, thinking back on why they had exhausted every possible method yet remained unable to uncover this mysterious force, only for the enemy to continuously seep into their ranks—
Why had the old monsters of the Five Immortal Sects been able to uncover it the moment they acted? Aside from their own formidable abilities, the greatest reason was that enemy knew Returning Home far too well!