Zi Tianwang and his granddaughter became even more nervous. They did not even want to blink. The fine juice on Shi chenhua's head had long turned into bean-sized beads of sweat, dripping down one after another. His face had also turned pale, and his expression was solemn.
Finally, the furnace calmed down. Shi chenhua's expression relaxed, and Zi Tianwang and his granddaughter both heaved a sigh of relief.
However, Ling Chuxi shook her head secretly. The alchemy techniques of the heaven domain were not fundamentally different from what she had learned in the past. The only difference was that the quality of the spiritual herbs was higher, and they used true fire instead of ordinary furnace fire. The technique to control the true fire was more ingenious.