M. d'Avrigny

Chapter 72 - Madame de Saint-Méran

d'Avrigny — aliases: Doctor, M. d'Avrigny

Dr. d'Avrigny is called by Valentine to examine her grandmother. He listens to her symptoms, including her hallucinations and fever, and goes upstairs to inspect the patient, displaying his characteristic diagnostic intuition and concern for the family.

Chapter 73 - The Promise

d'Avrigny

Dr. d'Avrigny joins Villefort in the garden to discuss the death of Madame de Saint-Méran. He reveals that the symptoms were consistent with poisoning by brucine or strychnine, likely administered by mistake or negligence, and urges Villefort to conduct an enquiry while urging discretion to protect the family from scandal.

Chapter 80 - The Accusation

d'Avrigny — aliases: doctor

Dr. d'Avrigny systematically dismantles Villefort's denials by detailing the poisoning pattern, accusing Valentine of orchestrating the deaths of M. de Saint-Méran, Mme de Saint-Méran, and the attempted murder of Noirtier. He refuses to treat any further members of the household, warning Villefort of slow retribution, and publicly masks the true cause of Barrois's death as an apoplectic fit before departing.

Chapter 94 - A Confession

d'Avrigny / M. d'Avrigny — aliases: the doctor

The doctor is summoned by Villefort and examines the unconscious Valentine, eventually confiding in Noirtier that the girl has survived because her grandfather accustomized her to the poison. He then prepares the antidote and gives strict instructions to Villefort regarding Valentine's care.

Chapter 104 - The Signature of Baron Danglars

d'Avrigny — aliases: Doctor

d'Avrigny returns to the Villefort house at eight in the morning to check on Noirtier, noting the old man's surprising ability to sleep. He later accompanies Villefort to the funeral viewing.