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Content Warning: This section of the guide includes discussion of racism, graphic violence, animal cruelty and death, and emotional abuse.
Sonia Wilson, a scientific illustrator, arrives by train at Siler Station, which features a banner advertising the “World-Famous Chatham Rabbit” meat that is being sold by boys on the platform. Her new employer, Dr. Matthias Halder, has not sent anyone to collect her, and with less than a dollar to her name, she cannot afford a coach. The stationmaster informs Sonia that Halder’s home is 10 miles away and arranges a ride for her with a local man, Asa Phelps. Phelps is a severe, religious man who states that giving her a ride is his “Christian duty” (5). During the journey, he warns her that the Devil walks in the local woods near a place called the Devil’s Tramping Ground. Phelps also claims to have personally seen the Devil, describing the entity as female.
Sonia arrives at Halder’s large, dark house and is greeted by his Black housekeeper, Rose Kent, who explains that Halder never told her when Sonia would be arriving. In the kitchen, Sonia meets an orange cat named Smiley. Rose warns her not to have marital aspirations for Halder, a “mean” (12) man Rose only works for because he treats everyone with equal disdain, regardless of race or gender. The next morning, Sonia finds a dead June bug in her wash water. Rose advises her not to act cower in Halder’s presence; if he makes Sonia angry she should not show it, or he will keep provoking her. Sonia meets Halder, who resembles a “weevil” (21), seems disappointed she is young, and specializes in parasitic and necrophagic insects. He shows her brilliant illustrations by a previous artist and demands Sonia match their quality. Intimidated, Sonia claims she needs better art supplies. Halder directs her to the “studio suite” to use the materials left there, warning her not to repeat the mistakes of a fool named Fitch.
Rose shows Sonia to the studio suite, a beautiful room that appears to have been abandoned abruptly by its former occupant. Sonia meets Sally, a young white servant girl, who tells her that Halder has no family and few visitors. Sally also warns Sonia not to walk in the woods at night because of “blood thiefs” that drain people. At dinner in the kitchen, Sonia meets Rose’s white husband, Jackson, the estate’s handyman. There is a tense moment until Sonia makes it clear that she is not bigoted against their interracial marriage. When Sonia mentions Phelps’s story about the Devil, Jackson begins to say there is nothing scary in the woods anymore, but his wife quickly silences him. That night, Smiley sleeps at the foot of Sonia’s bed, comforting her.
Sonia discovers that Halder’s library contains cabinets of poorly organized insect specimens rather than books. After a long search, she finds her first subject, the screwworm fly (Cochliomyia hominivorax), which looks like a common housefly. Halder deems her initial illustration competent and then horrifies her by graphically describing how screwworm larvae burrow into and consume the living flesh of animals and humans. On Sunday, Sonia accompanies Rose to a Black church. She overhears two women gossip about Halder’s wife, but they are cut off mid-sentence by Jackson’s arrival, so Sonia is left to only speculate on the woman’s fate with mordant humor: “[H]is poor wife what? Died? Left? Ran off to Paris to become a burlesque dancer? […] Was drained by blood thieves?” (53). Later, Jackson tells Sonia the true story behind the “blood thiefs” legend: Years ago, animals and several people were found dead, trussed up in trees, and drained of blood. The attacks stopped after a group of men, including Phelps, shot and drove stakes through two young people they caught draining a deer. Jackson reveals that Halder was also present.
While Sonia works on the balcony, a large fly lands on her wrist. She captures it and shows it to Halder, who identifies it as a botfly, or “wolf worm.” He describes its gruesome parasitic life cycle—botfly larvae slowly feed on host bodily fluids—and laughs as Sonia scrubs her arm in terror. His laughter turns into a coughing fit, and after she snaps at him, he reveals his fury at Asa Fitch, a real American entomologist Halder mocks for misnaming the species.
Later, Sonia is disturbed by an unhealthy-looking raccoon that stares at her from a tree. She meets Ma Kersey, a Lumbee woman and local healer, and learns that Chatham Rabbits are famous for being plentiful and tasty; they are now hunted in the area en masse and shipped to cities. When Sonia cannot find her next specimen for painting, Halder comes to the library and realizes that carpet beetles destroyed it. He then gives her a folio of sketches from the previous illustrator. Inside, while marveling at the extraordinary skill of the artist, Sonia is relieved to find a drawing of a bee with a diagram clearly labeling the metathorax, finally answering a question that had been troubling her.
Sonia arrival at Siler Station establishes her vulnerability, a condition that makes her employment a necessity. She has no money and nowhere to return to. Her journey to Halder’s house is an act of charity from strangers, not a professional arrangement. Moreover, Halder’s failure to send for her is the first indication of an unbalanced power dynamic, where Sonia is dismissed and neglected by her employer, whose reliance on her work and simultaneous mistreatment of her introduces The Parasitism of Abusive Dynamics. Halder, like the insects he studies, thrives on the desperation of those who depend on him. Sonia is geographically and socially isolated in a remote house where her well-being is subject to the whims of a man described as “mean as an old snake” (12). Her financial precarity and lack of connections ensure she cannot easily leave, trapping her in an environment where her professional skills are exploited and her personal safety is an afterthought.
Halder’s initial characterization merges him with his subjects, blurring the line between the observer and the observed. Sonia’s first impression is of a dehumanized man who “looked rather like an insect himself. A weevil, specifically” (21), a comparison that codes him as predatory and alien. His scientific passion has elements of sadism, as he delights in describing the gruesome life cycles of screwworms and botflies, parasites that consume living flesh. This establishes the novel’s source of biological horror—wolf worms and botflies—as a metaphor for Halder: invasive, violating, and indifferent to others’ suffering. His obsessive work, which includes his “life’s dream of the eradication of monsters” (49), reveals a mind concerned only with precision and raises the question of The Importance of Ethics in Scientific Research, suggesting that unchecked scientific ambition can become a form of monstrosity.
The narrative grounds its gothic horror within the specific social and racial landscape of the post-Reconstruction South. Rose’s stark justification for working for Halder—“he’s mean to everyone the same way” (13)—reveals a perverse society where universal malice is a shield from targeted racism. In 1899 North Carolina, the Kents’ interracial marriage was illegal, making their employment at an isolated estate a fraught necessity. Halder’s disdain for all people equally, regardless of race, offers them a form of protection unavailable in the wider world. The social fabric is further detailed through the introduction of Ma Kersey, an esteemed Lumbee healer whose authority operates independently of the region’s white power structure. Her presence highlights the existence of complex, self-reliant communities forged in the face of systemic marginalization. By embedding the story in this historical context, the novel suggests that the horrifying events at the Halder estate are an outgrowth of a society already shaped by violence, exclusion, and precarious survival.
The novel increases reader dread by presenting the mysterious violence in the woods through multiple, conflicting lenses. The threat is first introduced as supernatural by the fanatic Phelps, who claims to have seen a female Devil. It then becomes folkloric through the servant girl Sally’s tales of “blood thiefs” (32). Jackson’s account provides a third version rooted in human brutality: A series of unsolved murders that ended only after a mob, which included Phelps, lynched two young people and drove stakes through their bodies. Jackson’s chilling detail that the killer was a “funny sort of cougar that unbuttons a lady’s collar and folds back the cuffs on her sleeves” points to a methodical, intelligent predator (61). The revelation that Halder was present at the staking shatters the boundary between the rational scientist and the superstitious mob. His involvement implicates him in the community’s violent history, suggesting that his scientific inquiries and the locals’ brutal justice may be two facets of the same dark impulse.
Against this backdrop of isolation and layered threat, the motif of the sketchbooks emerges as an important tool for investigation and a symbol of solidarity. Initially, the exquisite illustrations left by Sonia’s predecessor serve as a source of anxiety, an impossibly high standard she feels she cannot meet. However, when Halder provides her with the previous artist’s folio of raw sketches, the dynamic shifts. These less-perfect working drawings, complete with a helpful diagram labeling the “metathorax,” and a signature that allows Sonia to identify and thus personify her predecessor, transform the unknown artist from a rival into an ally. The shared craft creates a bond between the two women, offering Sonia a sense of connection in her deep isolation. Finding guidance in another woman’s archived work demonstrates The Will to Survive in Extreme Circumstances, as Sonia uses her art to fulfill her contract and to perform detective work, uncovering the truth her predecessor could not.



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By T. Kingfisher