"Of course, my dear duke," said she, so as to be heard by all who were around; "of course you shall have the drops for my sister. I regret to hear that she needs them. Come with me to my cabinet, and you shall receive them from my hand. I will even taste them in your presence, that they may not be suspected of containing poison. Follow me, if my kind friends will excuse us for a few moments."

With a graceful bend of her head, the countess crossed the room, and disappeared with her brother-in-law. From the window to which he had retired, Eugene had seen and heard what was passing, and in the stern expression of the Duke de Bouillon's face he had read something of more significance than a whispered request for headache-drops. No sooner had his mother left the room than he followed her, and as she was about to enter her cabinet, he laid his hand upon her shoulder:

"Pardon, dear mother," said he, in fond and deprecating tones. "I merely wish to say, that during your interview with my uncle, I will remain in the little room adjoining. You may want me, perchance, to execute some commission—it may be to bear an apology to our guests."

"It will be better for Prince Eugene to take part in our conference," said the duke, with his usual moroseness. "He is the only son you have in Paris, and, as the representative of the family, it is proper for him to hear what I am about to communicate."

"I consent," replied Olympia, calmly. "I have no secrets from my son, and your highness may speak without reserve what you have come hither at this unusual hour to say."

With these words she entered her cabinet, the others following silently behind. The duke closed the door and looked around, to see that there were no other occupants of the room. He peered curiously at the heavy folds of the satin curtains which concealed the windows, and, having satisfied himself that no listeners lurked behind, he spoke.

"You are quite sure that we cannot be overheard?" said he, addressing the countess.

"Perfectly sure," replied she. "Of these walls it may be said, that, unlike walls of ordinary construction, they have no ears. Speak without apprehension. But above all things let us be seated."

"No, madame, let us remain as we are, and hearken to my words. You know that La Voisin was arrested last night."

"I know it. Monsieur Louvois brought me the news this morning, and it was corroborated by the rabble that attacked us not long after his departure from the palace. It is said that La Voisin is a toxicologist, and that she has been in the habit of selling poison to her patrons. Was this what you came to say?"