When Jiang Cheng saw that Yao Chen and Xiao Yan were unwilling to come over and observe, he did not intend to say anything more. Since they wanted to keep watching, then so be it.
As the pill within the cauldron gradually condensed, the pill-lightning clouds in the sky grew denser and denser. Several bolts of Bronze Heavenly Lightning tore through the silent sky like dragons and serpents, erupting with thunderous blasts.
An overwhelming pressure surged into their hearts, forcing Xiao Yan to drop onto the ground, drenched in sweat.
"So this is the phenomenon caused by a Seventh-Grade Pill? I never thought it would be this terrifying. Teacher, we'll be all right, won't we?"
Yao Chen shook his head. "We are in a safe area. The pill lightning will not reach us. Still, I am curious what pill he is refining. Why is its medicinal power so formidable?"
"Even Teacher cannot tell?"
"A Seventh-Grade Pill simply cannot produce such terrifying pill lightning. Moreover, its fragrance can be detected even a hundred miles away. Clearly, this person's strength is no weaker than mine."
Hearing his teacher say this, Xiao Yan could not help but stare in stunned disbelief. This was the first time he had heard his teacher give someone else such high praise.
Yao Chen's standards were extremely high. Back then, he had said that even Pill King Gu He, a Sixth-Grade Alchemist, was not worthy to carry his shoes. Yet now he held someone roughly Xiao Yan's age in such high regard. It was truly surprising.
Refining a Seventh-Grade Pill was naturally no easy task. This period would be exceptionally dull and long, but for high-grade alchemists, the process itself was something to be enjoyed.
Yao Chen kept his eyes fixed on the pill before him at all