# VI: Mirelle explained — The Mystery of the Blue Train

> Chapter companion for The Mystery of the Blue Train by Agatha Christie.

## What happens

Derek Kettering, shaken by his interview with Van Aldin, visits his mistress Mirelle. He reveals that Van Aldin wants Ruth to divorce him, and Mirelle, while professing affection, makes it clear she is not made to be poor. She suggests using knowledge of Ruth's past with the Comte de la Roche as leverage, and muses on the fortune that would come to Derek if Ruth were to die. Derek leaves angrily after defending his wife's honor.

## Themes in this chapter

### Deception and Appearances

Mirelle's manipulation and the hidden past between Ruth and the Comte de la Roche highlight the theme of deceit and public image.

### Greed and Materialism

Mirelle's obsession with jewels and wealth, and her conditional loyalty to Derek, underscore the corrosive influence of materialism.

### Love and Marriage

The strained marriage between Derek and Ruth, and Derek's affair with Mirelle, explore the complexities and failures of marital relationships.

## Character check-ins

### Derek Kettering

Visits Mirelle after a tense interview with Van Aldin; defends his wife's honor against Mirelle's insinuations.

### Mirelle

Derek's mistress; reveals her mercenary nature and suggests using Ruth's past with the Comte de la Roche as leverage.

### Rufus Van Aldin

Mentioned as having demanded a divorce for Ruth and as the purchaser of the 'Heart of Fire' ruby.

### Ruth Kettering

Discussed as the target of divorce proceedings; Mirelle hints at her past with the Comte de la Roche.

### Comte de la Roche

Mentioned by Mirelle as Ruth's former lover, with whom she allegedly plans to meet in Paris.

### Katherine Grey

Briefly encountered by Derek in the corridor; he later muses on her as 'Portrait of a lady with grey eyes.'

## Key lines

> I am Parisienne, you remember. He was her lover before she married you, was he not?

Mirelle claims insider knowledge of Ruth's past relationship with the Comte de la Roche.

_Mirelle uses this information to threaten Ruth's reputation._

> If she were to die, what a solution that would be.

Mirelle suggests that Ruth's death would conveniently resolve Derek's financial troubles.

_This dark remark foreshadows the murder to come._

## Links

- HTML: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se/chapters/vi-mirelle
- Book: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se
- All chapters: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se/chapters