In the end, Li Fan pinned the extensive insider information about the "Dead Gate Path" onto a bald "Fa Ke Daoist friend" he had met in the Central Plains.
Since "Fa Ke" had already been annihilated by Canglong, Old Liang would certainly be unable to track down his whereabouts and could conveniently serve as a scapegoat.
Due to his altered memory, Master Liang was somewhat paranoid, but he tentatively accepted the explanation, so they agreed that Master Liang would leave his seclusion and begin investigating the Dead Gate Path in Li Country.
Of course, it would be under the guise of searching for remnants of the Heilian Sect. After all, capturing the remnants of demonic cults was justified, and it was the perfect opportunity to deal with both cults simultaneously. Moreover, Master Liang already had a personal vendetta against the Heilian Sect and years of combat experience, naturally making him the most suitable candidate.