Chapter 639: Chapter 605: The Origin of Mystic Sky Sect

As if he encountered a high-ranking lifeform, he sensed its natural dominance.

The moment the figure appeared, Li Fan's heart thumped rapidly.

His body hair stood up slightly, and cold sweat dripped down from his forehead.

The image recorded by the Medicine King Cauldron seemed to be affected by something, becoming distorted and blurred.

Subconsciously stepping a step back, Li Fan only then reacted, his face turning pale.

"Merely a recorded image and yet such powerful influence."

"Could it be..."

"A True Immortal?"

Before Liu Ruchen passed away, he relayed a lot of things.

Included was the terrifying entity above the Xuanhuang World's crown, which seemed to engulf everything.

Since the ancient times, after a cultivator broke through to the Realm of Unification, after passing the Heavenly Tribulation, they could be brought to the upper world.

However, from a certain day onwards, anomalies began.