As he gained the top of the Rue Guenegaud, he saw two persons coming out of the Rue Dauphine whose appearance very much struck him.  Of the two persons who composed this group, one was a man and the other a woman.  The woman had the outline of Mme. Bonacieux; the man resembled Aramis so much as to be mistaken for him.

Besides, the woman wore that black mantle which d’Artagnan could still see outlined on the shutter of the Rue de Vaugirard and on the door of the Rue de la Harpe; still further, the man wore the uniform of a Musketeer.

The woman’s hood was pulled down, and the man held a handkerchief to his face.  Both, as this double precaution indicated, had an interest in not being recognized.

They took the bridge.  That was d’Artagnan’s road, as he was going to the Louvre.  D’Artagnan followed them.

He had not gone twenty steps before he became convinced that the woman was really Mme. Bonacieux and that the man was Aramis.

He felt at that instant all the suspicions of jealousy agitating his heart.  He felt himself doubly betrayed, by his friend and by her whom he already loved like a mistress.  Mme. Bonacieux had declared to him, by all the gods, that she did not know Aramis; and a quarter of an hour after having made this assertion, he found her hanging on the arm of Aramis.

D’Artagnan did not reflect that he had only known the mercer’s pretty wife for three hours; that she owed him nothing but a little gratitude for having delivered her from the men in black, who wished to carry her off, and that she had promised him nothing.  He considered himself an outraged, betrayed, and ridiculed lover.  Blood and anger mounted to his face; he was resolved to unravel the mystery.

The young man and young woman perceived they were watched, and redoubled their speed.  D’Artagnan determined upon his course.  He passed them, then returned so as to meet them exactly before the Samaritaine.  Which was illuminated by a lamp which threw its light over all that part of the bridge.

D’Artagnan stopped before them, and they stopped before him.

“What do you want, monsieur?” demanded the Musketeer, recoiling a step, and with a foreign accent, which proved to d’Artagnan that he was deceived in one of his conjectures.

“It is not Aramis!” cried he.

“No, monsieur, it is not Aramis; and by your exclamation I perceive you have mistaken me for another, and pardon you.”

“You pardon me?” cried d’Artagnan.

“Yes,” replied the stranger.  “Allow me, then, to pass on, since it is not with me you have anything to do.”

“You are right, monsieur, it is not with you that I have anything to do; it is with Madame.”

“With Madame!  You do not know her,” replied the stranger.

“You are deceived, monsieur; I know her very well.”

“Ah,” said Mme. Bonacieux; in a tone of reproach, “ah, monsieur, I had your promise as a soldier and your word as a gentleman.  I hoped to be able to rely upon that.”