Chapter 72, Madame de Saint Meran, Chapter 73, The Promise, Chapter 74, The Villefort Family Vault, Chapter 75, A Signed Statement, Chapter 76, The Progress of Cavalcanti the Younger, and Chapter 77, Haydee Summary

Madame Saint-Meran says Valentine Villefort's marriage should be held immediately, so she will still be alive for the ceremony. (Chapter 73, The Promise) Valentine goes to the garden and meets Maxmilian Morrel, telling him that the wedding has been pushed up. He tries to convince her to run away with him, but she will not disobey her father. He threatens to kill himself and she finally agrees. Maximilian Morrel hears the doctor talking with Monsieur Villefort. The doctor says Madame Saint-Meran has died, and he believes it was poison. Villefort begs him...