Amma Crellin

Amma murders Ann Nash and Natalie Keene, extracting their teeth to use as the ivory flooring of her beloved Victorian dollhouse. This revelation occurs in the novel's closing pages when Camille connects the dollhouse floor to the victims' missing teeth. A third girl later disappears after Amma moves to St. Louis with Camille, confirming that the killings were not isolated acts but a pattern rooted in jealous possession.

Amma kills them out of fierce, possessive jealousy—both girls threatened her claim on people she wanted to own entirely. Flynn frames this as a direct psychological inheritance of Adora's Munchausen-by-proxy household, where love is a finite, competed-for resource. Amma replicates her mother's possessiveness so precisely that her murders are, in her own distorted logic, acts of devotion—making her simultaneously Adora's victim and her most faithful disciple.

Amma is Camille's thirteen-year-old half-sister, and their bond is the novel's emotional core and cruelest irony. Amma courts Camille as a confidante, bonding over shared resentment of Adora, alcohol, and reckless behavior, and Camille receives this connection with genuine sisterly warmth she has never before experienced. The final revelation—that Amma is the killer—reframes every tender moment between them as a devastating betrayal.

Adora functions as both Amma's captor and her template. Amma performs the role of the perfect, doll-like daughter to secure Adora's love and household privileges while privately resenting the control. She absorbs Adora's possessiveness so thoroughly that she replicates it through murder—transforming Adora's pathology of caregiving-as-control into a pathology of killing-as-ownership, making her the most extreme and complete product of Adora's toxic parenting.

The dollhouse operates throughout the novel as a symbol of domesticity, control, and concealed violence. Amma lavishes obsessive attention on a miniature replica of Adora's Victorian home— itself a monument to performance and repression. The symbol reaches its horrifying conclusion when Camille realizes the dollhouse's ivory floor is made from Ann Nash's and Natalie Keene's extracted teeth, literalizing the idea that Amma's private world is built on the bodies of the girls she destroyed.

Amma conducts a calculated sexual relationship with John Keene while he is Wind Gap's prime murder suspect, using him as a pawn to deflect scrutiny away from herself. She is thirteen at the time, and Flynn presents the relationship as evidence of Amma's extraordinary capacity to manipulate adults. The maneuver demonstrates that Amma's control extends far beyond her peer group—she is able to exploit the town's suspicion of John to protect her own secret.

Amma is ultimately revealed as the killer, making her the novel's most dangerous figure—yet Flynn resists a simple villain label. She is the horrifying product of Adora's Munchausen-by-proxy household, a child shaped by performance, deprivation, and possessive love into someone who replicates that damage through murder. Flynn invites readers to see her as both perpetrator and victim, a girl whose capacity for violence is presented as the logical, if devastating, outcome of her upbringing.

Amma presents two entirely different selves: the frilly, submissive daughter Adora showcases at home and the sexually provocative, ruthlessly manipulative queen bee who commands her friend group outside. Flynn establishes this duality early when Camille spots Amma rollerskating with predatory confidence, then moments later encounters the same girl transformed into a docile child indoors. Flynn frames this not as simple teenage rebellion but as a refined survival strategy inside a household that rewards performance and punishes authentic selfhood.