This chapter follows the events after Mademoiselle Danglars and Mademoiselle d’Armilly quietly flee, a departure that goes largely unnoticed because everyone is preoccupied with their own troubles. The focus shifts to Madame Danglars, who, after realizing the magnitude of the scandal involving her daughter, seeks out her confidant, Lucien Debray, for advice. She had pinned her hopes on her daughter's marriage as a way to free herself from the burdens of guardianship. However, Eugénie’s strong-willed nature, her disdain for Debray, and her unexpected elopement disrupt these plans, leaving Madame Danglars desperate and humiliated.
Madame Danglars initially goes to Debray, hoping he might help resolve the situation, but finds him preoccupied with his own affairs, uninterested in taking responsibility for the scandal or marrying Eugénie. Disappointed and left to wait in vain, Madame Danglars returns home late at night, still unaware of her daughter’s full intentions. She believes Eugénie is asleep, exhausted from the evening’s chaos, but as she reflects on the events, she begins to grasp the gravity of the scandal that now threatens to destroy her family’s reputation.
The next morning, Madame Danglars decides to seek help from M. de Villefort, the public prosecutor, whom she believes might be able to suppress the scandal involving Andrea Cavalcanti (revealed to be the criminal Benedetto). She reasons that Villefort, as a friend, might be persuaded to overlook certain legal formalities to protect her family from further disgrace. However, upon arriving at Villefort's house, she is met with a cold, oppressive atmosphere, indicative of the tragedies that have recently plagued his household. Despite this, she proceeds with her request.
Villefort receives Madame Danglars with a mixture of cold professionalism and personal grief. He dismisses her concerns about the scandal, viewing them as trivial compared to his own recent losses. Villefort is unyielding in his determination to see justice served, refusing to delay or obstruct the legal proceedings against Benedetto, despite Madame Danglars' pleas. He explains that the law must take its course, and any mercy or leniency is out of the question.
The chapter culminates in Villefort receiving a telegram confirming Benedetto’s arrest, which seals the fate of both Benedetto and the Danglars family. Madame Danglars leaves Villefort’s office, realizing that her last hope of avoiding public disgrace has vanished. Villefort, on the other hand, is almost morbidly satisfied with the prospect of another high-profile trial, further highlighting his descent into a cold, vengeful mindset. The chapter closes with both characters facing the harsh realities of their situations, with Villefort more determined than ever to pursue his relentless path of justice, regardless of the personal cost.