# II: Isidore Beautrelet, Sixth-Form Schoolboy explained — The Hollow Needle

> Chapter companion for The Hollow Needle by Maurice Leblanc.

## What happens

Isidore Beautrelet, a schoolboy detective, is celebrated by the press for his insights into the Lupin case. He plans to investigate during the Whitsuntide holidays, but on the journey to Dieppe he receives a threatening note. Upon arrival, he learns of the burglary at the Château d'Ambrumésy and the kidnapping of Mlle. de Saint-Véran. He examines a cryptic document found at the scene. Later, he is captured by Ganimard but released by M. Filleul, who then questions him about his deductions. Beautrelet argues that since a theft occurred but nothing was reported missing, the stolen items must have been replaced by exact duplicates.

## Themes in this chapter

### Crime and Detection

The chapter centers on the burglary and kidnapping, the investigation by Beautrelet and the police, and the analysis of clues.

### Hidden History and Secrets

The cryptic document found at the scene and the mystery of the stolen items' replacement suggest hidden truths.

### Intellect and Cunning

Beautrelet's deductive reasoning about the theft and his strategic planning highlight intellectual prowess.

## Character check-ins

### Isidore Beautrelet

The sixth-form schoolboy detective; travels to Dieppe, receives a threat, examines the crime scene, and later is captured and released by the magistrate.

### Arsène Lupin

Referenced as the master criminal; believed by some to be wounded or dead, but his confederates are active.

### Inspector Ganimard

Captures Beautrelet at the château; present during the magistrate's questioning.

### M. Filleul

The examining magistrate at Dieppe; releases Beautrelet and engages him in discussion about the case.

### Raymonde de Saint-Véran

Reported kidnapped from the Château d'Ambrumésy; traces of blood found near the scene.

### Mlle. de Saint-Véran

Mentioned as having seen a double of Beautrelet on the eve of the crime.

## Key lines

> Every man should mind his own business. Do you mind yours. If not, you must take the consequences.

A threatening note warns Beautrelet to stop investigating or face repercussions.

_Found pinned to his seat during the train journey._

> granted that there has been a theft and that nothing has disappeared, it is because the object carried off has been replaced by an exactly similar object.

Beautrelet reasons that the stolen items must have been swapped with identical copies, since nothing is missing.

_His key deduction presented to M. Filleul._

## Links

- HTML: https://www.betterreads.online/discover/the_hollow_needle_se/chapters/ii-isidore-beautrelet-sixth-form-schoolboy
- Book: https://www.betterreads.online/discover/the_hollow_needle_se
- All chapters: https://www.betterreads.online/discover/the_hollow_needle_se/chapters