The Mystery of the Yellow Room · Character
Monsieur de Marquet
An examining magistrate who treats the law as theatre, dreading nothing more than a mystery's explanatory final act.
supporting
First appearance: viii the examining magistrate questions mademoiselle stangerson
As a supporting figure in The Mystery of the Yellow Room, Monsieur de Marquet is not background color—the story leans on what they do once the chapter opens.
The examining magistrate from Corbeil, who describes the case as baffling and notes the impossibility of the assassin's escape.
Monsieur de Marquet presides over the inquiry into the Yellow Room affair, but his true passion is the stage—he writes plays under the name 'Castigat Ridendo' and savors cases that furnish him with drama. He throws himself into the investigation less as a truth-seeker than as an amateur of intrigue, and he begs his registrar that the builder's pickaxe not destroy so fine a mystery. His theatrical temperament shapes the early investigation's tone, making him both an obstacle and an ornament to the pursuit of fact.
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Narrative arc
Story tension across the book — this chapter sits in Exposition.
- Setup
- Escalation
- Breaking point
- Aftermath
- Closing
This is the story's dramatic climax because it marks the emotional and psychological peak where Rouletabille’s…
Full beat labels and climax notes unlock in the reader.
Follow the arc while readingIn the story
Monsieur de Marquet appears across 3 companion beats. Open any chapter in the free preview to see the notes beside the text.
- In Which We Begin Not to Understand
- In Which Frédéric Larsan Explains How the Murderer Was Able to Get Out of The Yellow Room
- Rouletabille Knows the Two Halves of the Murderer
Chapter companion notes
Spoil-light check-ins for Monsieur de Marquet unlock in the free preview.
See Monsieur de Marquet in viii the examining magistrate questions mademoiselle stangerson