For a Peak-Stage Eighth-Order cultivator to break through to the Ninth-Order Supreme Realm, they also had to undergo the Reaching Heaven Tribulation, which was exactly the same as the tribulation of a Mystic Treasure.
The Reaching Heaven Tribulation was very complicated. Compared with the Four-Nine Heavenly Tribulation through the Nine-Nine Heavenly Tribulation of the Creation Realm, the Reaching Heaven Tribulation not only had an Outer Tribulation, but also an Inner Tribulation.
Ordinary heavenly thunder belonged to the Outer Tribulation, while when undergoing the Reaching Heaven Tribulation, the Inner Tribulation was triggered from within the cultivator's body. That was the greatest test for a cultivator.
When the time came, heavenly thunder would be outside and Heart Fire within; beset by internal trouble and external threat, countless heavenly talents were struck down at this step, ultimately dying with their Dao Dissipation.
The Reaching Heaven Tribulation of a Mystic Treasure was the same. An Inner Tribulation would also erupt from within the Mystic Treasure. Chen Fei was not confident in undergoing the Reaching Heaven Tribulation himself right now, let alone helping a Mystic Treasure undergo it.
If Chen Fei really dared to fuse the Ruin Realm Source into the Mystic Treasure now, the final result would be that the Mystic Treasure would be torn apart by the Reaching Heaven Tribulation and truly scatter between heaven and earth.
Stray thoughts flashed through his mind. Chen Fei's figure flickered, and he flew straight toward the tribulation clouds.
The Nine-Nine Heavenly Tribulation no longer posed much of a threat to the current Chen Fei. The strength of the heavenly thunder was equivalent to the attack of an ordinary Peak-Stage Eighth-Order cultivator. Even if Chen Fei stood there without moving now, the Nine-Nine Heavenly Tribulation could do nothing to him.
Chen Fei was flying toward the tribulation