Due to the lack of Earth Fire, the heat from the Natural Energy Fire was insufficient, so Ye Feng and Du Zhong could only build a blacksmith's furnace in the courtyard.
Once a large amount of charcoal was thrown in and burned red-hot, Ye Feng felt the temperature and then set up a Spirit Fire Formation next to the furnace to boost the flames and increase the spiritual energy!
For every Spirit Stone that Ye Feng threw out to arrange the formation, Du Zhong's heart trembled.
In his eyes, such behavior was no different from that of a prodigal son.
But since Ye Feng was so willing to part with them, it meant that he surely had even more Spirit Stones on him.
Once the furnace temperature reached that of Earth Fire and spiritual energy began to gather, Ye Feng started preparing the Spiritual Medicine, ready for alchemy.
