The question was direct and penetrating.
Wang Lan's mouth fell open and she looked up with a startled expression. When her eyes met Qiao Lian's, she looked down nervously once more. "I- I- I don't know what you mean. You—"
Before she could finish, Qiao Lian probed aggressively, "Who made you switch the drug? Shen Liangchuan? Xia Yehua? Or was it Auntie Li? Or… Song Yuanxi?!"
Wang Lan was suddenly at a loss. "Madam, I really don't know what you mean."
Seeing that she wasn't going to come clean no matter what, Qiao Lian narrowed her eyes. "Wang Lan, your family owed 200 000 to loan sharks. Where did you get that money to pay off your debt?"
Her words caused Wang Lan to squirm and hunch her shoulders. "I- I- I—"
"You got a hold of a huge sum of money out of the blue. If you don't come clean with the truth, then I will have to ask the police for help."