Chapter 778: The Token of the Precious Ring

At that moment, Cyneburg Wu gave a soft shout and tapped the celestial cauldron with his hand. A beam of spiritual light flew out, and he steadied it with his mind. He then cast the light into the pill furnace, adding other herbs in sequence to begin refining the Great Sage Pill. This light was the essence he extracted, which combined with the properties of the herbs, resulting in various marvelous reactions.

Since this wasn't a traditional pill refining process, it was quite different from...