Immortal Domain, Northern Realm.
Rumble!
The entire Northern Realm was trembling. The True Immortal patriarchs of every major lineage, who had been sleeping or cultivating in seclusion, all awakened and looked in confusion toward Heavenly Dao City.
At that moment, an enormous mountain emerged at the center of Heavenly Dao City!
It was none other than Heavenly Dao Mountain, which had ascended from the Lower Realm!
Nourished by endless immortal radiance, the entire Heavenly Dao Mountain expanded a hundredfold!
This was a rare stroke of fortune, a reward bestowed upon Ascenders by the Heavenly Dao of the Immortal Realm.
Su Bai intercepted all the immortal energy and used it to raise the grade of Heavenly Dao Mountain.
Every Spirit Vein rose by one grade!
More than a million Low-Grade Spirit Veins all became Mid-Grade Spirit Veins,
More than ten thousand Mid-Grade Spirit Veins all became High-Grade Spirit Veins,
More than a hundred High-Grade Spirit Veins all became Supreme-Grade Spirit Veins.
And those two Supreme-Grade Spirit Veins became...
Immortal Crystal Veins!
Immortal Crystal Veins, not Immortal Crystal Mines!!
An Immortal Crystal Mine was merely an Immortal Crystal Vein abandoned in the distant past. The Immortal Crystals had long since been mined out, leaving behind pitifully scarce reserves.
The geological formations surrounding an Immortal Crystal Mine were incredibly hard, and its Immortal Crystal reserves were scarce. On average, a Heavenly Venerable Realm miner could only dig out one Immortal Crystal every thousand years!
An Immortal Crystal Vein, however, was different. It was a complete major mineral vein, with incomparably abundant reserves!
So long as it was not overmined, it could produce roughly ten thousand Immortal Crystals every year!
Do not underestimate the number ten thousand Immortal Crystals. Accumulated over a million years, that would be ten billion Immortal Crystals!
Meanwhile, the Gao