"Ah?" Sally was surprised on the other end of the phone. "How did you know that the police came to me? Are you here to find me too? Where are you? I'm already at the entrance. Why didn't I see you?"

"No," Vivian immediately explained. "I just passed by the entrance and happened to see two familiar police officers. One of them is Ava. You have seen her photo before. You should remember her, right?"

"Yes, I have seen..." Sally suddenly lowered her voice halfway through speaking. ...