# The Arrest explained — The Mysterious Affair at Styles

> Chapter companion for The Mysterious Affair at Styles by Agatha Christie.

## What happens

Hastings is dismayed to find Poirot absent, then learns that Dr. Bauerstein has been arrested—but for espionage, not murder. Poirot returns and reveals his suspicions about Bauerstein's true activities. Miss Howard delivers a piece of brown paper with an initial that Poirot believes is 'L.' Mary Cavendish confesses to Hastings that her marriage is unhappy and she intends to leave Styles. A letter from French music publishers arrives, acknowledging Mrs. Inglethorp's cheque.

## Themes in this chapter

### Deception and Appearance vs. Reality

Bauerstein appears as a respectable doctor but is actually a German spy; Mary's cold exterior hides her true feelings; the brown paper label's initial is ambiguous.

### Marriage and Betrayal

Mary confesses her marriage to John is a failure; she married for escape, not love, and now plans to leave.

### Justice and Truth

Poirot seeks proof for his theory of the crime; the arrest of Bauerstein for espionage complicates the murder investigation.

## Character check-ins

### Arthur Hastings

Narrator; frustrated by Poirot's absence, then relieved at his return; learns of Bauerstein's arrest for espionage; receives Mary's confession.

### Hercule Poirot

Returns from London; reveals Dr. Bauerstein is arrested as a German spy; examines the brown paper label and deduces the initial is 'L'; confident he knows how the crime was committed.

### John Cavendish

Informed by Hastings of Bauerstein's arrest; decides to keep it quiet for the moment; later tells Mary the news.

### Mary Cavendish

Confides in Hastings about her unhappy marriage and her desire for freedom; reacts coldly to news of Bauerstein's arrest.

### Evelyn Howard

Brings Poirot a piece of brown paper found 'on top of the wardrobe,' which he uses to confirm a surmise.

### Dr. Bauerstein

Arrested for espionage, not murder; revealed to be a German-born spy; Poirot admires his patriotism.

## Key lines

> To my extreme annoyance, Poirot was not in, and the old Belgian who answered my knock informed me that he believed he had gone to London.

Hastings is irritated to find Poirot absent and learns he may have gone to London.

_Hastings' frustration at Poirot's unexpected absence._

> Oh, yes, very likely. But for espionage, mon ami.

Poirot confirms Bauerstein's arrest is for spying, not murder.

_Poirot corrects Hastings' misunderstanding about the arrest._

> Because she cares for someone else, mon ami.

Poirot hints that Mary Cavendish loves another man.

_Poirot's cryptic remark about Mary's true affections._

> I mean that I am not going to remain at Styles.

Mary tells Hastings she plans to leave Styles and her husband.

_Mary's declaration of her intention to leave._

## Links

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- All chapters: https://www.betterreads.online/discover/the_mysterious_affair_at_styles_se/chapters