chunk: Finally losing his temper with the young Vicomte, Déroulède raises his sword to disarm his protagonist once more, however de Marny lunges wildly at his opponent's breast and manages to literally throw himself on Déroulède's weapon. The boy is dead and Déroulède can do nothing but leave the establishment.
  On hearing of the death of his only son, the Duc de Marny (by now a cripple and almost a dotard) is distraught. The Duc summons his fourteen-year-old daughter, Juliette, to his side and forces her to swear an oath to ruin Déroulede in revenge for her brother's death, telling her that her brother's soul will remain in torment until the final judgement day should she break her promise.