Margaret Campbell and Xinxin’s Growing Bond
The Killing RoomThis flow traces Margaret Campbell’s movement from Li Yan’s partner to a trusted presence in Xinxin’s life, a bond that is challenged by separation and terror.
increasing
Bearing strength in each event
decreasing
An Imagined Child

Longing Finds a Relationship
Margaret Campbell has lived with the loss of her own unborn child and the difficult history of her relationship with David Webber. Her connection with Li Yan brings her into contact with Xinxin, his young niece, whose presence makes the idea of caring for a child feel immediate rather than abstract.
Margaret’s professional work has taught her to see the body as vulnerable and finite, but Xinxin draws her toward the living: a child who needs attention, patience, and affection. Their closeness gives Margaret a kind of tenderness she has often hidden behind work and sharp humor.
The bond also touches a private grief. Margaret sometimes wonders what her own child might have been like. Xinxin cannot replace that child, but caring for her gives Margaret a meaningful relationship with a young life she can protect and love.
A Reunion Full of Promise

Familiar Affection
After her father’s funeral in Chicago, Margaret returns to Beijing and meets Mei Yuan and Xinxin. Xinxin is delighted to see her and greets her with the uncomplicated excitement of a child who has missed someone important. Margaret’s response is equally warm: she crouches to embrace the girl and is moved by the love she feels through their winter clothes.
The two share an outing at Tiananmen Square. Margaret joins Xinxin in flying a kite, and the child and her classmates respond with laughter and applause. The activity lets Margaret step out of grief and adult conflict into a moment of play that requires no complicated explanation.
Their relationship becomes a source of ease for Margaret. She is not only Li Yan’s lover or a pathologist asked to assist a case; with Xinxin, she is a trusted adult whose presence brings joy and comfort.
Care Through a New Journey

Trust in Transit
Li Yan asks Margaret Campbell to bring Xinxin from Beijing to Shanghai, and Margaret readily agrees. The request gives her a direct part in the child’s care and a chance to spend time with her. Margaret prepares for the journey with the attentiveness of someone who understands that a first flight may be frightening or uncomfortable for a young child.
At the Capital Airport, Margaret checks them in and plans to buy mints for Xinxin, thinking ahead to the pressure in the child’s ears during takeoff and landing. Before she can finish, she glimpses the man with the hare-lip and becomes frightened. In the shock, she forgets the purchase and is left with a fear she cannot yet explain.
The journey begins with trust and affection, but it also exposes how danger can intrude on their ordinary closeness. Margaret’s responsibility for Xinxin is real, even when circumstances beyond her understanding begin to threaten them both.
A Bond Denied

Separation by Misunderstanding
At Xinxin’s kindergarten, Margaret expects to take the child with her. Instead, a policewoman blocks her, insisting that a foreign visitor requires special permission. Xinxin recognizes Margaret and runs toward her, but the officer pulls the child away while Margaret tries to explain who she is.
The incident is frightening for Xinxin and devastating for Margaret. She has neither the language nor the authority to make the officer listen, and she can only hear Xinxin crying as she is led away. Margaret believes Nien Mei-Ling has arranged the rejection, though the immediate failure stems from Li Yan not passing along the pickup plan.
The separation intensifies Margaret’s fear that she does not belong in Xinxin’s life. Their bond is strong, but it is vulnerable to bureaucratic authority, language barriers, and the adults’ failures to coordinate. Margaret leaves with love for the child and no way to comfort her.
Love Tested at the Park

Joy Interrupted
Margaret takes Xinxin to Tiantan Traffic Park, where the child drives a small electric car around miniature roads. Margaret watches her laugh and feels unusually happy and relaxed. She is attentive to Xinxin’s delight, though she briefly leaves the child waiting while she uses the restroom.
When Margaret returns, Xinxin is gone. The little car is abandoned, and every ordinary detail of the park suddenly feels menacing. Margaret searches frantically, calls for help, and understands that her brief absence may have allowed the kidnapping. Her affection turns into guilt and fear that she has failed a child who trusted her.
At the safe house, Margaret is present when Xinxin is found unresponsive. After the child survives, the bond is no longer defined only by play and affection; it carries the knowledge of shared danger. Margaret remains beside her, understanding that rescue is only the beginning of the care Xinxin will need.
During Margaret Campbell’s first meetings with Li Yan’s family life in Beijing
When Margaret Campbell meets Xinxin again in Beijing after returning from Chicago
When Margaret Campbell takes Xinxin from Beijing to Shanghai
The afternoon Margaret Campbell tries to collect Xinxin from kindergarten in Shanghai
The Saturday outing at Tiantan Traffic Park and the later rescue