The express box lay quietly on Xiaoxiao's table, with no sender and no address, only a line of printed receipt information, like some kind of cold announcement.
When she unwrapped it, a cheap plastic bracelet slipped out.
On the same day, the body of teacher Lin Ya was discovered.
And the most chilling thing was that when the forensic doctor raised her pale wrist, she saw an identical bracelet on it.
Concept: suspense reasoning