C215 They Are Immune to All Poisons

Seven or eight miles south, they met the previous group of people, all of them dejected, returning empty-handed.

"What happened?" Wu Zhongyuan was curious.

"It's not like you want to trade with us. Why are you asking so many questions?" The other party was not in a good mood either.

Since the other party was unwilling to say anything, Wu Zhongyuan could not ask any more questions. However