Fang Yuan and Elder Long entered the hall and found Gu Zhenren flipping through a book on the side, very engrossed.
Elder Long bowed and said respectfully, "Long Zhen greets the sect master."
Gu Zhenren did not react at all and continued to read by himself.
Fang Yuan did not bow when he saw this and casually went up to take a look.
Master was reading a book about the monster race.
It recorded the strength of the monster race's Gu control in the ancient times.
It was different from humans who could easily raise up to twenty Gu worms.
The monster race could only have one Gu worm in their entire life.
Moreover, it was connected to their lifeblood, and they would die together.
Because of this, their Gu refinement method was also known as the Vital Gu refinement method.
