“And you are convinced that this is no chimera?” said the marquis, with an incredulous smile.

“I am convinced of it, and I have the incontestable proof with me.” She took the two letters which she had received from Ranuzi, and gave them to the marquis. “Take them, and send them to the king, but, not to-morrow, not when it is convenient, but to-day; even this hour. If you are not prompt, in eight days King Frederick will be a fortress the poorer. Besides this, say to his majesty to be ever on his guard against the captive officers in Berlin, especially on his guard against my countryman, Count Ranuzi. He is the soul of this enterprise; he has originated this daring undertaking, and, if this falls to pieces, he will commence anew. He is a dangerous enemy—a serpent, whose sting is most deadly, most to be feared when he seems most gentle, most quiet. Say to King Frederick he will do well to protect himself from the traitor, the Austrian spy, Ranuzi.” Marietta stood up, and bowing to the marquis, she advanced to the door. D’Argens held her back.

“Madame,” said he, “if these things are really so, Count Ranuzi is a man to be feared, and we should make sure of him.”

“He is indeed a dangerous man,” said Marietta, with a peculiar smile. “Ask the beautiful Madame du Trouffle; she will confirm my words.”

The black, flashing eyes of the marquis fixed themselves searchingly upon the face of the signora. He remembered that the king had warned him to be upon his guard as to the communication of Madame Taliazuchi, that such mysteries were often nothing more than feigned intrigues, by which the discoverer sought to bring sorrow and downfall to an enemy.

“Ah, signora! I understand now,” said the marquis; “you did not come here for patriotism or love for Prussia or her king, but from frantic jealousy; not to serve King Frederick, but to overthrow Ranuzi.”

Marietta shrugged her shoulders with a contemptuous expression.

“I am an Italian,” said she, laconically.

“And the Italians love revenge,” said the marquis.

“When one dares to injure them—yes.”