"It is well," Don Benito replied, as he drew the curtain across again and made them a sign to rise; "I know you are too thoroughly Caballeros to break so solemn an oath."

The Colonel, confounded by this singular scene, which he did not at all comprehend, did not know what to do, when he fancied he heard an indistinct sound not far from him. Drawing himself up at once, he concealed himself behind the hedge, rather alarmed as to the cause of this noise, which was rapidly approaching. Almost immediately he noticed several men coming gently up; they were four in number, as he soon made out, and carrying a fifth in their arms. They walked straight to the door, at which they tapped in a peculiar way.

"Who's there?" was asked from inside.

One of the newcomers replied, but in so low a tone, that it was impossible for the Colonel to hear the word pronounced. The door was opened, and the strangers entered; it was then closed again, but not until the opener had cast a scrutinizing glance round him.

"What does this mean?" the Colonel muttered.

"It means," a rough voice said in his ear, "that you are listening to what does not concern you, Colonel Melendez, and that it may prove dangerous to you."

The Colonel, astounded at this unexpected answer, and especially at being so well known, quickly drew a pistol from his belt, cocked it, and turned to his strange speaker.

"On my word," he answered, "there is no worse danger to incur than that of an immediate death, which I should not at all object to, I swear to you."

The stranger began laughing, and emerged from the thicket in which he was hidden. He was a powerful-looking man, and, like the Colonel, held a pistol in his hand.

"You are aware that duelling is forbidden in the Mexican army," he said, "so take my advice, sir, and put up that pistol, which, if it exploded, might entail very disagreeable consequences for you."