C641 The Dark and the Flower Is Bright

Pu! With a light sound, the powder in the furnace exploded once again. The bottom of the furnace was empty and nothing was left. . .

After six hours, he had tried dozens of times. The essence that he had refined for a day was almost gone. It was not enough for Zifeng to squander it a few times!

"Damn it!" Standing up, Zifeng frowned. His heart was restless