C80 Hundredsaliva Fragrance

I asked in a low voice, "Grandpa, what are you doing? Why are you laughing so horribly?"

"Just wait and see." Old Taoist Zhang said as he fumbled around in his pocket. He took out a paper bag and opened it carefully. I saw that it was filled with some powdery white things.

"What is this?" I asked.

"You'll know in a while." Old Taoist Zhang said as he took out a piece of paper from his pocket