The Mysterious Affair at Styles · Character

Arthur Hastings

A convalescent soldier home from the Front, whose month's leave at Styles turns him into Poirot's friend, foil, and the reader's own eager, often wrong-footed eyes.

major

Also known as Hastings, Mr. Hastings

First appearance: The Mysterious Affair at Styles

As a major figure in The Mysterious Affair at Styles, Arthur Hastings is not background color—the story leans on what they do once the chapter opens.

The narrator and guest at Styles, arriving as a wounded soldier on leave.

In the storyThe Mysterious Affair at StylesOpen this moment free

Hastings narrates the affair from the inside, invited to Styles by John Cavendish just in time to witness the household's tensions and the poisoning that follows. He is warm, impulsive, and romantically inclined — especially toward Cynthia Murdoch — and his instincts about people are almost always confidently mistaken. His function is not to solve the crime but to misread it alongside us, which is precisely why Poirot's cool corrections land so satisfyingly.

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Character Web

15 connections

A slice of how Arthur Hastings sits in the book — open the reader for the full interactive map.

Relationship types

Other

Character groups

Primary suspects and investigators

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Narrative arc

Story tension across the book.

Setup
Escalation
Breaking point
Aftermath
Closing

This is the dramatic climax because Hastings experiences an emotional and psychological peak of confusion and…

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In the story

Arthur Hastings appears across 11 companion beats. Open any chapter in the free preview to see the notes beside the text.

The Mysterious Affair at Styles
The narrator and guest at Styles, arriving as a wounded soldier on leave.
I: I Go to Styles
The narrator and protagonist, invalided home from the war, arrives at Styles as a guest.
The 16th and 17th of July
Narrator; recounts the events of July 16th and 17th, plays tennis with Mary, visits Cynthia's dispensary, and overhears a tense conversation between Mary and Mrs. Inglethorp.
III: The Night of the Tragedy
Narrator; awakened by Lawrence, participates in breaking down the door, and later suggests calling Poirot.
IV: Poirot Investigates
Hastings visits Poirot to report the tragedy and provides a detailed account of the events, though Poirot chides him for omitting the detail of Mrs. Inglethorp's supper.
VII: Poirot Pays His Debts
Narrates the chapter, accompanies Poirot, and is initially skeptical of Poirot's theory but gradually becomes convinced.
Fresh Suspicions
Engages in discussion with Poirot about suspects; delivers Poirot's message to Lawrence; reveals Dr. Bauerstein's presence on Tuesday evening; describes Bauerstein's muddy appearance.
IX: Dr. Bauerstein
Delivers Poirot's message to Lawrence, discusses Bauerstein's possible guilt with John, and proposes to Cynthia.
The Arrest
Narrator; frustrated by Poirot's absence, then relieved at his return; learns of Bauerstein's arrest for espionage; receives Mary's confession.
XI: The Case for the Prosecution
Narrator; expresses admiration for Mary; learns that Poirot suspected John all along.
XIII: Poirot Explains
Listens to Poirot's explanation, initially frustrated by the deception but ultimately understanding.

Chapter companion notes

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