Just as Xu Nan thought, the box opened and a black air suddenly popped up!

As he imagined, the rat guards jumped up suddenly, screamed and ran away!

The black gas continued to spread, and soon it spread towards the entire farm. For a while, the rat farm was in chaos and no rat people suffered casualties, but they could not bear the smell of the black gas and fled from the post they should have adhered to.

Xu Nan, who was prepared for a long time, silently took out a mask and put it on, and checked the data column with satisfaction.

However, to his surprise, the system did not determine that he had completed the task!

"Damn, I have obviously taken down the farm!"

Xu Nan was a little puzzled: "There are still rats who can tolerate this smell?"

Just then, a dying voice came from beside him:

"teacher……"

"I can't hold it in any way."

"You should take this magical power soon!"
Chapter completed!