C183 Provoking Trouble

When he was Na Shi's guard, Qing Niao had learned how to distinguish poison, in case someone tried to poison Na Shi.

Qing Niao had seen the poison in the well before. It was called Bone Corrosion, and it came from Hundred Herbs Mountain Manor. It was refined from a flower. Although it was colorless, it had a faint fragrance of flowers. The poison was not strong