An aura capable of stirring a resonance within him in such deep Sumeru Turbulent Flow.
The possibility that it belonged to a Cave-Heaven Domain far outweighed all the other possibilities.
But.
Where had this Cave-Heaven Domain come from?
The Demon Refining Mystic Sect?
Not very likely.
For one thing, strictly speaking, the Demon Refining Mystic Sect had never been a fully established great sect with an orderly succession of inheritances.
The Mystic Sect had been founded in the closing years of the previous Era of Dao Strife.
After Wisdom Sword Tathagata and Celestial Venerable Yangshan had successively attained the Dao and ascended, the remaining sages of the sects embroiled in Great Dao Strife had united a hundred lineages to establish this tradition.
The purpose of this tradition at its founding had been to refine demons!
To refine the essential power of the Demon Race's bloodline origins beyond Two Realms Mountain, strengthening the Dao Fruits that still remained in the world from the previous Era of Dao Strife after Wisdom Sword Tathagata and Celestial Venerable Yangshan attained the Dao and ascended.
To compensate for a shortfall in quantity with an improvement in quality.
In the hope that this method would assemble a third complete foundation for immortal ascension!
Unfortunately.
The schemes of the immortal Dao's mighty figures from the previous Era of Dao Strife had failed.
Ultimately, this had provoked the Demon Race into crossing Two Realms Mountain and fighting a bloody battle in the North Sea, with the tragic result that the previous Era of Dao Strife ended in blood, and the present era began in blood.
Taking the dividing point between the previous age and the present one as the center line.
Looking backward, the final bloody battle of Great Dao Strife had been far too brutal. At that