In the course of Xiao Yifei's conversations with the Holy Spirit within this Holy Mountain, he learned that the latter had some past connection with his father, and the oppressive aura he sensed at the foot of the mountain also emanated from the Holy Spirit within.
Moreover, based on the behavior of the two servants in the presence of this aura, Xiao Yifei could see that the Holy Spirit's existence within the Holy Mountain was recognized by the Xiao Family. In other words, both the Holy Mountain and the Holy Spirit within it are acknowledged by the Xiao Family.
Based on this information, Xiao Yifei linked it to the wager for the victor in this "Martial Artist Conference," and he could easily deduce the identity of the Holy Spirit.
Sunflame Qilin!
