"Don't Look in the Mirror Late at Night: The Thirteenth Pair of Eyes in Guiyun Ancient House" is a novel that combines psychological suspense and folklore thriller. The story revolves around Guiyun Mountain Residence in western Sichuan. Lu Jinlu, a doctor of psychology, was invited to preside over a group therapy for seven patients with "memory disorders". Although the participants have different backgrounds, they share surprisingly similar memory fragments: a rainy night, an ancient well, a woman wearing a moon-white cheongsam, and a gilt plum blossom button.
As the investigation deepened, Lu Jinlu discovered that these memories were no coincidence, but pointed to the bizarre disappearance of Lin Suyi, the proprietress of the embroidery shop in Qingxi Town forty years ago. Old Chen (Gu Chengan), the housekeeper of the ancient house, and Shen Moshu, the project leader, both seem to be hiding shocking secrets. It turns out that Shen Moshu's father, Shen Qingshan, once conducted a cruel dissociative personality experiment on Lin Suyi in the name of treatment, trying to extract and transplant memories through the "Light Traceability Project".
The plot of the novel is reversed layer by layer, revealing the truth about human greed and the collapse of scientific ethics from the illusion of collective hysteria. The memories of the participants are actually the remnants of the implanted experiment, and the strange phenomena in the ancient house are the projection of past sins. In the end, Lu Jinlu pieced together the complete truth at the critical moment of life and death: Lin Suyi did not simply disappear, but her personality "A Yuan" was trapped in the mirror world for forty years. The story explores the profound themes of memory, identity and redemption while uncovering a dusty crime. The ending is sad and thought-provoking.