C656 Alchemy book

Ye Feng came to the Pill Sect to search for the pill formula to refine Tong Ling Dan. Before this, Ye Feng did not think too much about it, he only thought that as long as the Pill Sect could give him the pill formula, he would be willing to pay anything.

In an unexpected situation, Ye Feng actually carved runes on the medicinal cauldron for the Pill Sect