The Styles inquest is the public examination of Emily Inglethorp’s death, held at the Stylites Arms in the village. It establishes strychnine poisoning as the cause of death and places a dramatic accusation against Alfred Inglethorp before the jury, yet returns a verdict against an unknown person or persons rather than identifying a killer. The proceedings therefore sharpen the mystery even as they settle its central medical fact: the evidence presented in public appears to point decisively in one direction, while Hercule Poirot recognizes that its very neatness may be a trap.

Setting and Purpose

The inquest takes place on a Friday at the Stylites Arms. Poirot and Arthur Hastings attend but are not required to give evidence. After the preliminary proceedings, the jury views Emily’s body, and John Cavendish identifies her and describes waking in the early hours to find that his stepmother had died. The formal sequence moves from identification and family testimony to medical evidence, then to the testimony that gives the hearing its sensation: the chemist’s assistant’s claim that poison was sold to Alfred.

The proceeding is not the later criminal trial of John Cavendish. Its task here is to establish the circumstances and cause of Emily’s death and assess the evidence available at the hearing. That distinction matters: the inquest confirms murder, but its final verdict does not name the person responsible. The gap between a firm finding of wilful murder and an unidentified perpetrator leaves the larger question open.

Medical Evidence and the Poisoning

A London toxicology specialist summarizes the post-mortem findings: Emily died from strychnine poisoning. The quantity recovered indicates that she took at least three-quarters of a grain, and probably one grain or slightly more. Asked whether the poison could have been swallowed accidentally, the specialist considers that very unlikely, noting that strychnine is not a domestic poison and that its sale is restricted.

The timing complicates the first proposed route of administration. The coroner asks whether the poison could have been in Emily’s after-dinner coffee, which her husband had taken to her. The specialist allows that it was possible in principle, but explains that strychnine usually acts within one to two hours. Because Emily took the coffee at about eight in the evening and did not show symptoms until the early hours, the interval points instead toward a later dose. A second possibility is tested against evidence: Emily habitually drank cocoa in the middle of the night, but analysis of a sample remaining in the saucepan found no strychnine.

The inquest thus establishes a lethal poisoning while leaving its precise delivery unresolved. Later, when Poirot explains the case, he identifies a third medium: Emily’s prescribed medicine. He reasons that the coffee was not drunk, the cocoa contained no strychnine, and the poison must have been taken between seven and nine that evening. His reconstruction links the medicine to the fatal dose and turns the inquest’s apparently narrowing medical evidence into part of a broader chain of clues.

Testimony, Suspicion, and Inheritance

Before the hearing, Poirot has already stated the prosecution’s working contention: Emily died of strychnine poisoning, presumably administered in her coffee. At the inquest, however, the medical evidence makes that assumption uncertain. The difference between the initial theory and the specialist’s timing assessment illustrates how the inquiry tests a plausible account against the physical evidence rather than simply confirming it.

The testimony about Emily’s fortune supplies another possible motive and another source of complexity. John says that her will from the previous August left her entire fortune to him after minor legacies to servants. He describes the arrangement as fair because, under his father’s will, Lawrence would receive a considerable sum when Emily died, while John had inherited the property and would be responsible for maintaining Styles. Poirot points out that English law automatically revoked that will when Emily remarried; Mr. Wells confirms that it is null and void. The hearing therefore exposes a consequential difference between what the family understood as a settled distribution and the legal effect of the marriage.

The gardeners add a tantalizing but incomplete detail about a later document. Emily called them in and had them sign their names at the bottom of a long paper, beneath her signature, while blotting paper concealed the writing above it. Their evidence establishes that they witnessed a document, but not what it said. The uncertainty acquires weight because the old will was revoked by remarriage and the later will’s terms are not disclosed by the witnesses’ account; signature and witnessing do not, by themselves, settle who would inherit.

The sharpest accusation comes from Albert Mace, a qualified pharmacist who had only recently joined the village shop after the former assistant was called up for the army. Asked whether he had sold strychnine to an unauthorized person, he says yes; when asked to identify the purchaser, he names Alfred. The courtroom’s attention turns to Alfred, who starts slightly but remains seated. Mace’s evidence seems to supply the missing link between access to poison and the death, but its force depends on how reliable his identification is—a question that becomes central when the evidence is examined again.

Verdict and Poirot’s Doubt

The coroner also questions Alfred about whether he purchased strychnine to poison a dog. Yet the inquest does not culminate in his identification as the murderer. The jury’s verdict is “Wilful Murder against some person or persons unknown.” It formally recognizes a deliberate killing while withholding a name, leaving the accusation against Alfred unresolved within the hearing itself.

Poirot’s response immediately challenges the apparent strength of the case. He calls the evidence against Alfred too conclusive: in his view, real evidence is usually vague and unsatisfactory and must be sifted, whereas this evidence has been manufactured so cleverly that it defeats its own ends. The inquest’s most persuasive public narrative may therefore be designed to frame Alfred. Poirot argues that the conspicuous case against him can be cut away, but the hearing itself does not yet supply the proof that will identify the alternative explanation.

The poison-sale testimony later falters under scrutiny. At John Cavendish’s trial, Mace identifies a phial as the one he sold to “Mr. Inglethorp,” but admits that he knew Alfred only by sight and had never spoken to him. Alfred denies buying the poison, and other witnesses support his statements. These later proceedings expose a weakness already latent in the inquest’s dramatic accusation: a confident identification is not the same as a secure identification when the witness had never spoken to the person he claimed to recognize.

Significance in the Investigation

The inquest is a turning point in the public handling of the case, not its solution. It establishes the death’s cause, puts a precise quantity of strychnine and a medically significant delay into evidence, and raises questions about coffee, cocoa, medicine, and access to poison. At the same time, it brings the will and its revocation into view, revealing that inheritance depends on the legal consequences of Emily’s remarriage as well as on the family’s assumptions about earlier arrangements.

Its structure also makes the difference between legal evidence and private deduction visible. The jury can return a verdict of wilful murder without identifying a culprit; Mace can name Alfred while lacking a strong basis for recognition; and the specialist can identify the poison while ruling the obvious drink less persuasive on timing. Poirot’s method depends on keeping these separate: what the inquest proves, what a witness claims, and what a hypothesis can explain are not interchangeable. The hearing closes without a named murderer, but its contradictions supply the questions that his later reconstruction must answer.