"Clatter!"
Waves of soul-stirring and terrifying fluctuations poured unreservedly down from the firmament, accompanied by a breath of thunder that was impossible to resist.
As time passed, the fusion of medicinal herbs and proto-pills in the hands of the four shadowy figures grew increasingly pronounced, and the Heaven and Earth Energy above the entire city fluctuated, faintly showing signs of pill formation.
"Rumble!!!"
At the boundless top of the sky, streaks of pitch-black dark clouds suddenly emerged. The moment they appeared, they covered all light like a colossus. Dense packs of thunder within the dark clouds shuttled back and forth across the firmament like strips of silver snakes, and occasionally a wisp of residual thunder fell, actually shattering the city's architecture below in an instant and grinding it to dust.
A moment later, a layer of gorgeous and dazzling colors slowly emerged amidst the dark cloud thunder layer, which contained even more astonishing and terrifying power.
"What kind of terrifying thunder tribulations can a Saint Grade Eighth-Tier Heavenly pill possibly bring down?"
The crowd in the city below raised their heads, their gazes shrinking tightly. They could sniff a wave of extremely terrifying and berserk energy fluctuations from those dark cloud thunder layers, but precisely because of this, the anticipation in their hearts grew all the more intense!
The stronger the pill lightning tribulation provoked, the higher the grade of the refined pill, and moreover, they also very much wanted to see whether these four people could successfully form their pills.
First color.
Second color.
Until the seventh-color radiance completely filled the dark cloud thunder layer, the entire heaven and earth grew slightly quieter.
"Seven-color? These four people are actually refining Saint Grade Eighth-Tier Heavenly pills at the same time?"
"This is the Seven Xuan Demonic Lightning that even some