After half a month of staking the place out, they finally caught the sister one evening as she came to secretly visit Mr. and Mrs. Liu.
The police were a bit stunned the moment they caught her. The two sisters looked remarkably alike, though Liu Wenjuan's sister appeared much older.
The woman didn't seem surprised to be caught, nor did she panic. As soon as she entered the police station, she gave a detailed confession.
"The human heart is unfathomable. Liu Wenjuan and I were blood sisters, just six years apart. The year I turned six, I went with her to buy something to eat. She sold me."
"I don't know where she found the human traffickers, but even now, I can still clearly remember the sight of her haggling with them over the price."
"She was only eleven years old then. Before she left, she glanced back at me one last time. I've remembered that look my whole life."
