The mist was swirling, making it hard to see clearly, but the aura of the approaching person was extremely powerful, one he had felt only from the Supreme Elder before.
No, it seemed even stronger than the Supreme Elder.
"Who goes there!"
Ye Lingfeng's heart pounded in surprise as he quickly withdrew his power and activated the restrictions in the hall.
This hall had restrictions allowing only himself and his disciples to enter. He knew his disciples' abilities well—the eldest and third disciple had recently ascended to immortality but were only Celestial Immortals; such a powerful aura could not belong to one of his disciples.
However, he did not think an outside enemy had invaded either, as the sanctum was located within the Grotto Heaven of their sect, making it impossible for an outsider to sneak in.
Judging by the strong yet unfamiliar aura, he assumed it was an elder from their sect who had emerged from closed-door cultivation and quickly bowed:
