Nanon had something else to do than laugh in her sleeve at the prolongation of the blunder. At that moment she had to think, not only of her own happiness, but of her lover's liberty. Nanon loved Canolles so devotedly that she could not harbor the thought of his infidelity, although that thought came often to her mind. She had seen naught but affectionate solicitude in the pains he had taken to send her away from him; she believed him to be an unwilling prisoner; she wept and thought of nothing but the moment when, with the powerful assistance of Monsieur d'Épernon, she might obtain his freedom. So it was that she had written again and again to the dear duke, doing everything in her power to hasten his return.

At last he had arrived, and Nanon lost no time in presenting to him her petition touching her pretended brother, whom she was insanely anxious to rescue at the earliest possible moment from the hands of his enemies, or rather from those of Madame de Cambes, for she believed that Canolles in reality was in danger of no worse fate than falling in love with the viscountess.

But that in Nanon's eye was the worst of all dangers. She therefore implored Monsieur d'Épernon, upon her knees, to set her brother at liberty.

"Why, it could not happen better," replied the duke. "I have this moment learned that the governor of Vayres has allowed himself to be taken, and we will exchange him for our brother Canolles."

"Oh!" cried Nanon, "this is a special favor from heaven, my dear duke."

"You love this brother of yours very dearly, do you not, Nanon?"

"Oh, yes! more than my life."

"How strange it is that you never mentioned him to me until that day when I was fool enough—"

"Then Monsieur le Duc, you will—?" said Nanon.

"I will send the governor of Vayres to Madame de Condé, who will send Canolles to us; that is done every day in war-time,—an exchange, pure and simple."