"Elder Bai, you don't need to inquire about the specific time." Fang Yun shook his head, then continued, "But I am curious how exactly a Spirit Vein is upgraded."
The books Fang Yun read were mainly about Alchemy, Artifact Refining, and Planting. He had also read a fair number of books on Evil Demons and Crooked Paths.
Aside from those, he hadn't read much on other subjects.
He didn't know much about Spirit Veins, either.
Now that the topic had come up, it piqued his curiosity.
"Upgrading a Spirit Vein is certainly a complex process. I'm not sure about the specifics myself," Bai Heyan said with a smile. The variety of books he read was even more limited. "But I do know that to upgrade a Spirit Vein, you must accumulate a sufficient amount of Spirit Vein Essence."
"What is Spirit Vein Essence?"
