Mystery Solved

The lady was hiding behind those two men and was saying something to them. The two men slowly slammed their rollers on their hands threateningly. 

"Come on guys, there's no need for violence. I just want your guys to own up to the truth and that will be all," Ning said. 

"What truth?" one of the men asked. 

"That you guys were behind the bad bread incident today at Golden Flour," Ning said. "Look, I already know that this lady dressed up as a man and went to the mill at the riverbank to ask them to poison their flour supply for the day."

"I also know that you were all in on it, so you can't make a single person a scapegoat here either," Ning said. "So, put down the rollers, and let's just talk."

The 2 men's eyes shook from learning that their secret had gone out. If others found out, they would be in a lot of trouble.

"What do we do?" one of the men asked.