KNOCK KNOCK KNOCK.
At noon, a knock on the door startled Wang Yan awake.
Ever since discovering her daughter, Chen Na, was missing last night, she had been too worried to sleep. She had just succumbed to exhaustion and dozed off for a moment when the sudden knock came.
Thinking the Public Security Bureau had a lead, she scrambled to her feet and went to the door. But when she opened it, no one was there.
She looked around and saw a small box on the ground.
She took it inside and opened it. Inside was a letter and a sealed medicine box.
Wang Yan unfolded the letter and immediately recognized the elegant handwriting as her daughter Chen Na's.
"I'm sorry, Mom. I have to be away for a while. Please don't worry about me. I'll be back."
Following Chen Na's brief message was another section of text, written in a different hand.
