His tone was quiet and reflective; he pulled at a blade of grass as he lay there. And Laurent, nearly as quietly, cursed in French and English the man to whom Aymar had once rendered a service.

"That does no good," observed Aymar. "And if you want to swear at any one . . . Tell me, Laurent, are you at all given to practical joking? If so, let me relate to you the story of a very successful effort of that kind; it is rather instructive."

"But I don't——" began Laurent. Aymar disregarded him.

"There was a young man the other day—a soldier, an officer, I don't know his name—who had a great turn for that sort of thing, and a tolerable gift of playing a part. Happening to be quartered with others one evening at an inn, he was witness of the arrival of a somewhat perturbed old gentleman, come to make enquiries about a lady of his acquaintance, who had been forbidden for a short time to proceed on her journey—as much for her own sake as for any other reason, since the road was required for troops——"

"Aymar!"

"Don't interrupt me, please! The old gentleman came out from his interview with the subaltern's major in a state of panic. He had mistaken the major for the colonel in command, the major had been short with him—bored by the old man's quite needless alarm about the lady, who meanwhile was peaceably sitting in her room upstairs. It occurred to this young officer that it would be excellent fooling to raise this simple old gentleman's fears to an even higher pitch, and utilizing the fact that a woman spy really had been shot by his own side a little before, and making a vague statement about the lady's past which happened to fit the case, he succeeded in so thoroughly terrifying his victim into the belief of her imminent execution that— . . . but perhaps I need not go on."

"Aymar," came at last from Laurent in a tone of horror, "you do not mean to say that this is the whole explanation of the mystery about Mme de Villecresne's danger—the whole cause of . . . everything?"

"Yes," responded L'Oiseleur unemotionally. "Nothing but that; a successful practical joke, helped out by circumstances, played in the first place on a timid and credulous nature, and then, through him, on one perhaps as credulous—too blind to hazards . . . too fond of them, it may be . . ."

Laurent felt frozen in the sunshine. "Was this detestable tale Colonel Richard's avowal of yesterday?"

"Yes. But of course he had no hand whatever in the imposture, and was horrified when he discovered it, which did not happen fully till after the fight. He was not at the Cheval Blanc at all, you see; he was quartered at the presbytère, where Vaubernier found him when he went back with the letter and asked for him by name. But, naturally, when information was offered him he was not going to refuse it. He could well assent to the 'bargain,' promise not to shoot the lady of whose detention at the inn he was not even aware! By sending any one as stupid and gullible as the old Marquis into this business the gods may have been looking for amusement. If so, I think they must have found it."