C33 Poisonous Worm Master

Since the Profound Yellow Medical Scripture contained information on both Poison Skill and Gu Arts, Zhou Yuan had become quite knowledgeable about Gu Arts.

It was this knowledge that made him confident the Poisonous Worm Master must have noticed something by now.

According to the scripture, a Poisonous Worm Master has a unique method of sensing their cultivated Gu worms