That such a hold existed, Aubert's own statement and the desperate attempts made by the Fenayrous to get back these letters, would seem to prove beyond question. Had Aubert consented to return them, would he have saved his life? It seems probable. As it was, he was doomed. Fenayrou hated him. They had had a row on a race-course, in the course of which Aubert had humiliated his former master. More than this, Aubert had boasted openly of his relations with Mme. Fenayrou, and the fact had reached the ears of the husband. Fenayrou believed also, though erroneously, that Aubert had informed against him in the matter of the table-water fraud. Whether his knowledge of Aubert's relations with his wife was recent or of long standing, he had other grounds of hate against his former pupil. He himself had failed in life, but he saw his rival prosperous, arrogant in his prosperity, threatening, dangerous to his peace of mind; he envied and feared as well as hated him. Cruel, cunning and sinister, Fenayrou spent the next two months in the meditation of a revenge that was not only to remove the man he feared, but was to give him a truly fiendish opportunity of satisfying his ferocious hatred. And the wife what of her share in the business? Had she also come to hate Aubert? Or did she seek to expiate her guilt by assisting her husband in the punishment of her seducer? A witness at the trial described Mme. Fenayrou as "a soft paste" that could be moulded equally well to vice or virtue, a woman destitute of real feeling or strength of will, who, under the direction of her husband, carried out implicitly, precisely and carefully her part in an atrocious murder, whose only effort to prevent the commission of such a deed was to slip away into a church a few minutes before she was to meet the man she was decoying to his death, and pray that his murder might be averted. Her religious sense, like the images in the hat of Louis XI., was a source of comfort and consolation in the doing of evil, but powerless to restrain her from the act itself, in the presence of a will stronger than her own. At the time of his death Aubert contemplated marriage, and had advertised for a wife. If Mme. Fenayrou was aware of this, it may have served to stimulate her resentment against her lover, but there seems little reason to doubt that, left to herself, she would never have had the will or the energy to give that resentment practical expression. It required the dictation of the vindictive and malevolent Fenayrou to crystallise her hatred of Aubert into a deliberate participation in his murder.