Dark Plane!!
Yin Ming found a tranquil stretch of void and let Undying Xuanming energy radiation spread outward.
He annihilated every Chaotic Baleful Entity within a hundred-mile radius, creating a silent, peaceful environment.
His Yang Spirit Divine Sense touched a Mental Rune engraved upon his ribs, carefully studying the knowledge purchased from the Subordinate God alongside the substitute transaction.
The information contained in this rune's structural analysis materials nearly equaled the sum total of all knowledge Yin Ming had encountered while cultivating his techniques.
Even with more than three thousand thoughts operating at once, he would need at least several days to digest it all.
Wizard Civilization.
Its core was runes.
And the knowledge required to produce runes was the core of the core.
The most advanced knowledge for producing runes was the foundation. Naturally, every branch of knowledge contained within was of paramount importance.
The foundations for constructing combinations of rune spells, the underlying logic for drawing upon extraordinary energy, the crucial points where energy circuits meshed with spells, the secrets of merging different kinds of energy...
Especially the knowledge related to rune spells—it was interconnected with Seal Formulas, rituals, and all studies that expounded the Dao. Its value was utterly immeasurable.
Wuxiang Watson possessed similar knowledge for constructing Ritual Studies.
Unfortunately, at the end of the God Era, even he had abandoned Ritual Studies. Its development had stagnated for tens of thousands of years. Though it possessed a longer history, the priests of that time had been constrained by their ranks. The people were lacking; they lagged behind the Black Tower by more than a whole generation.
Even so, he had been unwilling to grant it to his allies for free.
And this obsolete core knowledge was a version used by the Black Tower four thousand years ago.