C171 Poison master

"Could that powder be some kind of poison?"

Zhang Kai sprinkled the powder, it was colourless and tasteless, but after Cheng Feng touched it, he didn't feel anything unusual.

However, a sense of threat rose in Cheng Feng's heart, which was extremely strong.

Therefore, Cheng Feng determined that the powder was most likely a poison refined by the Poison Master.

One must know