After all, within Lin Residence, only the three of them could possibly summon Black Demon Lightning and evolve once more.
As for the other lightning, it was no longer of any use to Xuan Kongzi, who was already a High-level Half-Saint.
The only thing that might allow Xuan Kongzi to evolve was the Black Demon Lightning summoned when a Ninth-grade Treasure Pill emerged.
Of course, the Black Demon Lightning within this Void Lightning Pool would not do.
And the reason it would not work was not because the Black Demon Lightning in the pool lacked energy. On the contrary, the Black Demon Lightning here was simply too powerful.
After all, how could the Black Demon Lightning produced by an ordinary Ninth-grade Treasure Pill threaten a Dou Sheng expert?
Yet the Black Demon Lightning in this Void Lightning Pool could do exactly that.
After taking out Xuan Kongzi, Lin Feng raised his head and looked toward the constantly writhing black clouds overhead.
He could sense an intense force of destruction within them.
That power was countless times stronger than the Nine-colored Dan Thunder he had summoned when refining a peak eighth-grade pill.
Of course, although the black clouds overhead were terrifyingly imposing, they posed no threat whatsoever to the current Lin Feng.
After all, the Black Demon Lightning summoned by his pill refinement was countless times weaker than that within this Void Lightning Pool.
As the black cloud layer overhead continued to gather, after roughly ten minutes, a circular opening slowly split open at the center of the pitch-black clouds.
Looking into it, there was nothing within the opening but utter darkness, as though it were the deepest of black holes.
Yet the instant this circular opening appeared, something suddenly filled the air beneath the black clouds.
At the same time,