“How can you promise so much? Do you mean that you and I must fall upon him? You forget that he will have men about him. A duel is one thing, a rough-and-tumble another, and we shall fare none so well in this, I’m thinking.”

The captain closed one eye, and a leer of subtle cunning overspread his face.

“I’ve thought of that,” said he. “Neither a duel nor a rough-and-tumble do I propose, but something between the two; something that shall seem a duel yet be a rough-and-tumble.”

“Explain yourself.”

“What further explanation does it ask? We come upon Monsieur le Marquis where his men are not. We penetrate, let us say, into his chamber. I turn the key in the door. We are alone with him and you provoke him. He is angry, and must fight you there and then. I am your friend; I must fill the office of second for both sides. You engage, and I stand aside and let you fight it out. You say he is indifferently skilled with the sword, and, in addition, that he has a fever. Thus you should contrive to put your steel through him, and a duel it will have been. But if by luck or skill he should have you in danger, I shall be at hand to flick in my sword at the right moment and make an opening through which you may send yours home.”

“Believe me it were better—” began the Dowager. But Marius, who of a sudden was much taken with the notion, again broke in.

“Are you to be depended upon to make no mistake, Fortunio?”

“Per Bacco!” swore the ruffler. “A mistake must cost me a hundred pistoles. I think you may depend upon me there. If I err at all, it will be on the side of eagerness to see you make short work of him. You have my answer now, monsieur. If we talk all night, you shall not move me further. But if my proposal suits you, I am your man.”

“And I yours, Fortunio,” answered Marius, and there was a ring almost of exultation in his voice.

The Dowager looked from one to the other, as if she were weighing the men and satisfying herself that Marius ran no risk. She put a question or two to her son, another to the captain; then, seeming satisfied with what had been agreed, she nodded her head and told them they had best be stirring with the dawn.