Heavenly Demon Cave.
The dim sky seemed veiled by a layer of gray gauze, murky and gray as though filled with countless specks of fine dust. Even the Blazing Sun in the heavens looked like nothing more than a mass of white light, like the moon obscured by thin clouds.
It was not only the sky. Mountains, rivers, plains, and earth—all were shrouded in gray.
This was not merely foul qi, but demonic qi accumulated over who knew how many tens of thousands of years.
Simply put, it was spiritual qi mixed with foul qi, impure and chaotic. To ordinary cultivators, such demonic qi was like poisonous gas; even breathing normally could cost them their lives.
Compared to ordinary spiritual qi, the demonic qi of Heavenly Demon Cave was more suitable for Demonic Cultivators of the fifth tier and above. Heavenly Demon Cave was an ancient battlefield, and it was said that countless earth-shaking demons and fiends had perished within it.
After those supremely powerful demons and fiends had been dead for millions upon millions of years, the fragmented remnants of their divine consciousness still drifted through the void, subtly altering the spiritual qi of Heavenly Demon Cave.
The secret arts of the demonic sects all originated from imitating powerful demons and fiends. If demonic cultivators training here could obtain a remnant thought of divine consciousness corresponding to their cultivation method, their cultivation would surely advance by leaps and bounds.
Yet demonic qi was chaotic, and it harmed every kind of cultivator.
Even high-level Demonic Cultivators would not remain in Heavenly Demon Cave for too long.
As a Spirit Transformation member of the snake clan, Bai Jiuzhen had already wandered Heavenly Demon Cave for several decades. She often had to consume Purifying Void Transformation Pills to dissolve the foul qi