Xinxin
The Killing RoomXinxin is Li Yan’s young niece and the child at the heart of his struggle to reconcile police work with family responsibility. Abandoned by her mother and rejected by her father, she depends on Li Yan and the adults around him for care and stability. Her warmth and playfulness make her more than a vulnerable child in the investigation: when she is abducted, the case’s danger reaches directly into the family life Li Yan is trying to protect.
Identity and Family Background
Xinxin is six when Li Yan explains how she came to live with him. Her mother is Li Yan’s sister. After becoming pregnant again and learning that the baby was a boy, she left Xinxin with Li Yan and disappeared to have the child she had wanted. Xinxin’s father had wanted her mother to have an abortion; after the mother left, he also refused to take responsibility for the girl. The adults’ choices leave Xinxin dependent on her uncle, without either parent reliably present.
Li Yan connects her situation to the pressures and consequences of the One-Child Policy. He reflects on unwanted girls and children growing up without siblings, describing a broader family cost in which even the next generation may lack aunts and uncles. His concern is not abstract: he is raising Xinxin while trying to meet the demands of a job that can keep him working at any hour. She stays in his apartment, but he must arrange care around his unpredictable schedule, at first relying on a friend and on a succession of babysitters.
The rooms of Li Yan’s home carry the history of this improvised family. Xinxin sleeps in the room that belonged to Li Yan’s late Uncle Yifu. She asks Li Yan to tell her stories about the smiling man in the photograph on the wall, and Li Yan makes time for her. In this domestic ritual, she inherits a connection to a relative she never knew directly, while Li Yan passes on memories of someone whose guidance still shapes his own life.
Care and Relationships
Li Yan’s care for Xinxin is devoted but constrained by the instability of his work. When he has to leave, he considers arranging for Mei Yuan to look after her; he also recognizes that Margaret Campbell is no longer available to step in as she once might have. His private preparations make visible the practical burden behind his role as guardian: clothes must be packed, childcare found, and the child’s needs fitted around an investigation that may keep him away.
When Li Yan is working in Shanghai, Nien Mei-Ling helps him establish a temporary routine for Xinxin. A kindergarten agrees to take her, his hotel provides an adjoining room, and he pays a babysitter for evenings and weekends when work keeps him occupied. Nien Mei-Ling’s affection for children means Xinxin will have company and opportunities to play. Margaret is glad at the prospect of seeing the girl, but the arrangements also sharpen her sense that Nien Mei-Ling has become present in parts of Li Yan’s life that Margaret once regarded as her own. Xinxin’s care thus brings together practical cooperation and adult emotional tension without making the child responsible for it.
Li Yan’s reflections on another child who has lost his mother return him to Xinxin’s experience. He remembers the months after her mother abandoned her and her father refused to take her back, and worries that he has not been able to help her through the upheaval. Living with an unmarried uncle and moving among babysitters, he fears, gives her too little stability. Later, as the investigation continues, he again imagines the costs of a life spent in hotel rooms and changing kindergartens, and resolves that he must address her future when the case is over. His concern persists even when the work offers no clear end point.
Bond with Margaret Campbell
Xinxin and Margaret meet with an ease that contrasts with the strain between Margaret and Nien Mei-Ling. When Margaret sees her at a kindergarten gathering near the Forbidden City, Xinxin is delighted but initially cannot leave her kite. Mei Yuan takes the kite line so that Xinxin can run into Margaret’s arms. Margaret crouches to embrace her, and Xinxin, who has learned a few English words, greets her with formal politeness. The moment quickly gives way to shared play: Margaret takes the kite line, and the children and teachers gather to watch the box kite rise.
Margaret’s pleasure in Xinxin’s company is accompanied by private grief for the child she might have had. Later, at a children’s traffic park, she rides beside Xinxin in a miniature car. Xinxin speeds through the toy-road course, takes a roundabout the wrong way, and treats the driving as a game; Margaret laughs and tries to explain the rules, while suspecting that Xinxin knows perfectly well what she is doing. Their companionship gives Margaret a brief release from her own sadness, though the outing also brings the ache of her imagined lost child into view.
The bond is visible again when Margaret comes to collect Xinxin from kindergarten. A uniformed policewoman has taken the child’s hand, but Xinxin recognizes Margaret, breaks away, and runs to her for a hug. The reunion is immediate and affectionate; the policewoman’s angry response turns the greeting into a confrontation, but does not diminish the trust Xinxin shows in Margaret. When Li Yan later asks Margaret to collect the child and bring her back with her, Margaret responds eagerly. Their closeness gives Xinxin another source of affection, while also making her safety a shared responsibility.
Abduction and Rescue
At the traffic park, the ordinary pleasure of the outing ends when Margaret leaves Xinxin beside the miniature car to use the nearby toilets. She is away only briefly. On returning, she finds the car abandoned and Xinxin missing. The familiar activity and busy surroundings offer no reassurance: the park appears normal, but the child has vanished. Margaret searches and calls for help, then realizes that the girl she briefly mistakes for Xinxin is someone else. The error confirms to her that Xinxin is gone.
Li Yan reaches the park within twenty minutes of Margaret’s call. By then, an hour has passed since Xinxin disappeared. He directs the uniformed officers while Margaret blames herself, and she believes he blames her too. The disappearance turns Li Yan’s private fear about his niece’s vulnerability into an urgent search. Investigators later review footage from the Zhongshan–Wuyi intersection. It shows a man taking a small bundled figure from a work van and placing the figure in a car trunk. Li Yan recognizes the bundle as Xinxin; the man’s features and scarred-looking mouth identify him as the Mongolian Kidnapper Margaret had previously seen.
The reason for the abduction emerges when Li Yan confronts Huang Tsuo. Huang says that the plan was Cui Feng’s: taking Xinxin was intended to distract Li Yan from the investigation long enough for Cui Feng to cover his tracks. Huang does not know where she is, but believes she has probably been taken to the safe house. The revelation makes the child’s disappearance part of the effort to obstruct the case, rather than an unrelated crime, and gives Li Yan a direct reason to pursue the lead.
During the raid, Li Yan and Margaret find Xinxin bound and blindfolded on a cot. She is not breathing when Li Yan reaches her, and Margaret is unable to speak. The scene’s terror gives way to a narrow possibility of recovery: Xinxin is taken to intensive care, where Margaret sits beside her bed. She explains that the kidnappers had kept the child heavily sedated and that Xinxin was dehydrated and almost comatose; a delay of another hour or two might have been fatal. Xinxin survives, but her condition shows how close the rescue came to arriving too late.
Narrative Role and Significance
Xinxin’s story repeatedly tests whether care can be made dependable amid separation, work, and danger. Her mother’s departure and her father’s refusal leave Li Yan to provide a home, but his work makes that home difficult to stabilize. Temporary arrangements—a friend, babysitters, a hotel room, and kindergartens—answer immediate needs without resolving his fear that she lacks a lasting sense of security. His concern for her future remains in the background of the investigation until the abduction makes the danger unmistakable.
Her relationships also reveal different forms of chosen care. Li Yan preserves Yifu’s memory by telling Xinxin stories; Mei Yuan and Nien Mei-Ling help create practical support; Margaret offers affection that becomes evident in their play and in her frantic response when Xinxin disappears. The rescue brings Li Yan and Margaret together at the child’s bedside, with Xinxin’s life depending on the same people whose personal lives have been unsettled by the case. Through her, family is not only a matter of parentage: it is the ongoing work of showing up, arranging care, and trying to keep a child safe.


