His Grace waved his fan languidly to and fro.

“But one more command,” he sighed. “Just keep our amiable friend away from his wife, my dear.” He passed on to speak to Madame de Vauvallon, and was presently lost in the crowd.

Lady Fanny was complimenting Madame de Saint-Vire on her gown.

“I declare, that shade of blue is positively ravishing!” she said. “I searched the town for just such a taffeta not so long ago. La, there is that lady in puce again! Pray who may she be?”

“It is—I believe it is Mademoiselle de Cloué,” Madame replied. The Vicomte de Valmé came up. “Henri, you have seen your father?”

“Yes, madame, he is with de Châtelet and another, over there.” He bowed to Fanny. “It is Milor’ Merivale, I think. Madame, may I be permitted to fetch you a glass of ratafie?”

“No, I thank you,” said my lady. “Madame, my husband!”

Madame gave her hand to Marling. Up came Madame du Deffand.

“Now where is your brother, Lady Fanny? I have asked him to entertain us with some of his so amusing verses, and he says that he has another form of entertainment for us!” She rustled on, looking for Avon.

“Is Avon to read us his verses?” asked someone near by. “He is always so witty! Do you remember the one he read at Madame de Marchérand’s rout last year?”

A gentleman turned his head.

“No, not verse this time, d’Orlay. I heard d’Aiguillon say that it was to be some kind of story.”

“Tiens! What will he be at next, I wonder?”

Young de Chantourelle came up with Mademoiselle de Beaucour on his arm.

“What’s this I hear of Avon? Is it a fairy tale he means to tell us?”

“An allegory, perhaps,” suggested d’Anvau. “Though they are not now in fashion.”

Madame de la Roque gave him her wine-glass to take away.

“It is so strange to tell us a story,” she remarked. “If it were not Avon one would go away, but since it is he one stays, full of curiosity. Here he comes!”

His Grace made his way across the room with Madame du Deffand. People began to seat themselves, and those gentlemen who could find no chairs ranged themselves along the wall, or stood in small groups by the doors. Out of the tail of her eye Lady Fanny saw Saint-Vire seated in a small alcove near the window, with Merivale perched on the edge of a table beside him. Madame de Saint-Vire made a movement as though to get to him. Lady Fanny took her arm affectionately.

“My dear, do sit with me! Now where shall we go?” Avon was at her side.

“You lack a chair, Fanny? Madame, your most devoted servant!” He raised his eyeglass, and beckoned to a lackey. “Two chairs for mesdames.”

“There is not the need,” said Madame hurriedly. “My husband will give me his——”

“Oh no, madame, you must not leave me thus alone!” said Fanny gaily. “Ah, here are chairs! I vow we have the best place in the room!” She whisked Madame into a spindle-legged chair that had been brought by the lackey, so that she sat by the fireplace, to one side, able to see the room, and to be seen by nearly everyone. On the same side, but withdrawn a little into the alcove, her husband sat, and could only see her profile. She turned to look at him imploringly; he sent her a warning glance, and set his teeth. Merivale swung one leg gently, and smiled across at Davenant, leaning against the doorpost.

Madame du Deffand settled herself beside a small table, and laughed up at Avon.

“Now, my friend, let us hear your fairy tale! I hope it is exciting?”

“Of that, madame, I shall leave you to judge,” Avon replied. He took up his stand before the fire, and opened his snuff-box, and helped himself delicately to a pinch of snuff. The firelight and the candlelight played upon him; his face was inscrutable, except that the strange eyes held a mocking gleam.

“There’s something afoot, I’ll swear!” d’Anvau confided to his neighbour. “I mislike that look on our friend’s face.”

His Grace shut his snuff-box, and flicked a speck of snuff from one great cuff.

“My story, madame, begins as all good stories should,” he said, and though he spoke softly his voice carried through the room. “Once upon a time—there were two brothers. I have forgotten their names, but since they detested each other, I will call them Cain and—er—Abel. I have no idea whether the original Abel detested the original Cain, and I beg that no one will enlighten me. I like to think that he did. If you ask me whence sprang this hatred between the brothers I can only suggest that it may have originated in the heads of each. Their hair was so fiery that I fear some of the fire must have entered into the brain.” His Grace spread open his fan, and looked serenely down into Armand de Saint-Vire’s face of dawning wonderment. “Quite so. The hatred grew and flourished until I believe there was nothing one brother would not do to spite the other. It became a veritable obsession with Cain, a madness that recoiled on him in the most disastrous manner, as I shall show you. My tale is not without a moral, you will be relieved to hear.”

“What in the world does all this mean?” whispered Lavoulčre to a friend. “Is it a fairy tale, or does something lie behind.”

“I don’t know. How does he manage to hold his audience so still, I wonder?”

His Grace went on, speaking very slowly and dispassionately.

“Cain, being the elder of these two brothers, succeeded in due course to his father, who was a Comte and went the way of all flesh. If you imagine that the enmity now subsided between him and Abel, I beg you will permit me to disabuse your minds of so commonplace a thought. Cain’s succession but added fuel to the fire of hatred, and whereas our friend Abel was consumed of a desire to stand in his brother’s shoes, Cain was consumed of a like desire to keep him out of them. A situation fraught with possibilities, you perceive.” He paused to survey his audience; they watched him in mingled bewilderment and curiosity. “With this life-ambition in view, then, our single-minded friend Cain took a wife unto himself and doubtless thought himself secure. But Fate, capricious jade, evidently disliked him, for the years went by, and still there came no son to gladden Cain’s heart. You conceive the chagrin of Cain? Abel, however, grew more and more jubilant, and I fear he did not hesitate to make—er—a jest of his brother’s ill-luck. It was perhaps unwise of him.” His Grace glanced at Madame de Saint-Vire, who sat rigid, and very pale, beside Lady Fanny. His Grace began to wave his fan rhythmically to and fro. “I believe Cain’s wife presented him once with a still-born child. It began to seem unlikely that Cain would realize his ambition, but, contrary to Abel’s expectations, Madame la Comtesse raised her husband’s hopes once more. This time Cain determined that there should be no mistake. Possibly he had learned to mistrust his luck. When madame’s time was upon her he carried her off to his estates, where she was delivered of—a daughter.” Again he paused, and looked across the room at Saint-Vire. He saw the Comte cast a furtive glance towards the door, and colour angrily at sight of Rupert lounging there. His Grace smiled, and swung his eyeglass on its riband. “Of a daughter. Now observe the cunning of Cain. On his estate, possibly in his employ, there dwelt a farm-labourer, as I judge, whose wife had just presented him with a second son. Fate, or Chance, thus set a trap for Cain, into which he walked. He bribed this peasant to give him his lusty son in exchange for his daughter.”

“But what infamy!” exclaimed Madame de Vauvallon comfortably. “You shock me, Duc!”

“Strive, to bear with me, madame. There is always the moral. This exchange, then, was effected, none being the wiser save the parents of each child, and of course the midwife who attended Madame la Comtesse. What became of her I do not know.”

“Mon Dieu, what a tale!” remarked Madame du Deffand. “I so dislike these villains!”

“Go on, Justin!” said Armand sharply. “You interest me extraordinarily!”

“Yes, I thought that I should,” nodded his Grace pensively.

“What became of—Cain’s daughter?”

“Patience, Armand. Let us first dispose of Cain and his supposed son. Cain presently brought his family back to Paris—did I tell you that this tale takes place in France?—leaving instructions that his daughter’s foster-father was to leave his estates for some remote spot, unknown to anyone, including himself. In Cain’s place I think I should not have desired so ardently to lose all trace of the child, but no doubt he acted as he thought wisest.”

“Duc,” interposed Madame de la Roque, “it is inconceivable that any mother could consent to such a wicked plan!”

Madame de Saint-Vire held her handkerchief to her mouth with one shaking hand.

“Al-most inconceivable,” Avon said gently. “Probably the lady feared her husband. He was a most unpleasant person, believe me.”

“We can easily believe that,” Madame smiled. “A villainous creature! Go on!”

From under his heavy lids Avon watched Saint-Vire tug at his cravat; his eyes travelled on to Merivale’s intent countenance, and he smiled faintly.

“Cain, and his wife, and his pretended son, returned to Paris, as I have said, and greatly discomposed poor Abel. When Abel watched his nephew grow up with no trace of his family’s characteristics either in face or nature, he was more than ever enraged, but although he wondered at the boy the truth never occurred to him. Why should it?” Avon shook out his ruffles. “Having disposed of Cain for the moment, we will return to Cain’s daughter. For twelve years she remained in the heart of the country, with her foster-parents, and was reared as their own child. But at the end of those years Fate once more turned her attention to Cain’s affairs, and sent a plague to sweep the neighbourhood where the daughter was. This plague struck down both foster-father and mother, but my heroine escaped, as did also her foster-brother, of whom more anon. She was sent to the Curé of the village, who housed her, and cared for her. I beg you will not forget the Curé. He plays a small but important part in my story.”