The Devil Master's memories were simply too vast and numerous.
Even with Lin Fei's powerful Primordial Spirit manifestation, it would take at least several years to "read" through them all.
But he was currently on Earth. If he truly wasted several years here, hundreds of years would have already passed at Treasure Vase Mountain.
With the Holy Demon Sect's Devil Master dead, no one knew what they would do next.
If they sought revenge against the Great Flame Dynasty or the Mountain Sea Alliance, then if he did not hurry back, something unexpected might happen.
Therefore, Lin Fei could not spend that much time.
He could only activate a ten-thousandfold accelerated browsing mode for unimportant memories and skip over them directly.
Only when he encountered memories that interested him would he examine them carefully.
"Heavenly Demon Mark?"
"Heavenly Demon Reincarnation Art... Heaven Swallowing Demonic Art..."
"Black Heaven Demon Patriarch..."
After carefully studying the Heavenly Demon Reincarnation Art, Lin Fei was utterly stunned.
The Heavenly Demon Reincarnation Art allowed a Celestial Immortal whose lifespan was nearly exhausted to disperse all their cultivation and be reborn through reincarnation.
Such a secret art was simply unheard of.
"If one mastered this art, wouldn't one be able to reincarnate endlessly?"
"However, using the Heavenly Demon Reincarnation Art is no easy matter. Three conditions must be fulfilled..."
The first condition.
Was to condense a Heavenly Demon Mark.
According to the Devil Master's memories, to condense a Heavenly Demon Mark, one had to at least reach the Human Immortal Realm, unite one's spirit with the Dao, have one's soul constantly nourished by the Great Dao Origin, and possess sufficiently powerful soul consciousness.
This was the most basic condition.
If one's soul consciousness was not powerful enough, one could not condense a Heavenly Demon Mark.
The Heavenly