Having accomplished these two crimes, Derues did not remain idle.  When the murderer’s part of his nature was at rest, the thief reappeared.  His extreme avarice now made him regret the expense’ caused by the deaths of Madame de Lamotte and her son, and he wished to recoup himself.  Two days after his return from Versailles, he ventured to present himself at Edouard’s school.  He told the master that he had received a letter from Madame de Lamotte, saying that she wished to keep her son, and asking him to obtain Edouard’s belongings.  The schoolmaster’s wife, who was present, replied that that could not be; that Monsieur de Lamotte would have known of his wife’s intention; that she would not have taken such a step without consulting him; and that only the evening before, they had received a present of game from Buisson-Souef, with a letter in which Monsieur de Lamotte entreated them to take great, care of his son.

“If what you say is true,” she continued, “Madame de Lamotte is no doubt acting on your advice in taking away her son.  But I will write to Buisson.”

“You had better not do anything in the matter;” said Derues, turning to the schoolmaster.  “It is quite possible that Monsieur de Lamotte does not know.  I am aware that his wife does not always consult him.  She is at Versailles, where I took Edouard to her, and I will inform her of your objection.”

To insure impunity for these murders, Derues had resolved on the death of Monsieur de Lamotte; but before executing this last crime, he wished for some proof of the recent pretended agreements between himself and Madame de Lamotte.  He would not wait for the disappearance of the whole family before presenting himself as the lawful proprietor, of Buisson-Souef.  Prudence required him to shelter himself behind a deed which should have been executed by that lady.  On February 27th he appeared at the office of Madame de Lamotte’s lawyer in the rue du Paon, and, with all the persuasion of an artful tongue, demanded the power of attorney on that lady’s behalf, saying that he had, by private contract, just paid a hundred thousand livres on the total amount of purchase, which money was now deposited with a notary.  The lawyer, much astonished that an affair of such importance should have been arranged without any reference to himself, refused to give up the deed to anyone but Monsieur or Madame de Lamotte, and inquired why the latter did not appear herself.  Derues replied that she was at Versailles, and that he was to send the deed to her there.  He repeated his request and the lawyer his refusal, until Derues retired, saying he would find means to compel him to give up the deed.  He actually did, the same day, present a petition to the civil authority, in which Cyrano Derues de Bury sets forth arrangements, made with Madame de Lamotte, founded on the deed given by her husband, and requires permission to seize and withdraw said deed from the custody in which it remains at present.  The petition is granted.  The lawyer objects that he can only give up the deed to either Monsieur or Madame de Lamotte, unless he be otherwise ordered.  Derues has the effrontery to again appeal to the civil authority, but, for the reasons given by that public officer, the affair is adjourned.