Chapter 2172: Such low methods! (2)

Amid the squeals of surprise, Feng Xiaoyan's face revealed a cold smile.

Earlier the stone which she had secretly thrown out was a piece of ice crystal.

For materials like the ice crystal, the pricing is rather expensive but to Pill Masters, it's something necessary as it was used to supplement the adjustment of the flame's temperature.

As the ice crystal itself had relatively low temperature, the minute it was thrown into the flame, it could instantly lower the flame's temperature.

Moreover the piece of ice crystal in Feng Xiaoyan's hand is of excellent quality and is one of the treasures collected in the Alchemist Guild. Even if it was up against the deviant flame, it could instantly absorb a large portion of the heat from the flame, moreover what Huang Yueli used to refine pills, was the most ordinary open flame?

Just at the instant where the ice crystal and the flame got in contact, the flame was completely extinguished.