What is the significance of Monsieur Regnault's diamond pin? Why does he mention it to Dr. Bianchon?

What other stories have you read that remind you of the opening of La Grande Bretèche with its description of the ruined house and garden? Why do you think the place has such an effect on Bianchon?

What is your judgement of Madame de Merret's choice to let her lover die in the closet rather than go back on her oath to her husband? What other options did she have? Who is ultimately responsible for Feredia de Bagos's death?

Why do you think the ladies shivered at the end to Bianchon's tale?