Pang Jian had been pondering a question recently.
The Demon Race, by nature, adapted to both Spiritual Energy and Filth Alien Power. In the Upper Realm, there were Demon Gods like Long Xiao and Old Rock Bear, while in the Lower Realm, there were also Demon Gods like the Nine-Headed Bird.
Long Xiao and Old Rock Bear had joined the ranks of Demon Gods by relying on nature's spiritual energy, and the Demon God seats they obtained should bolster the fate of the Demon Race.
That dead Nine-Headed Bird, as well as the current Dark Giant Python, had relied on something nearly identical to the Alien Tribes' ascension to the tenth level -- a filthy essence from within the darkness.
This suddenly reminded him of his own state.
A long time ago, during his first visit to Bagua City, when the Spiritual Power in his dantian was exhausted, he was forced to absorb Filth Alien Power and discovered that Filth Alien Power could also serve as a source of power in the dantian.