In these circumstances Vitalis succeeded in extracting from his mistress a power of attorney, giving him authority to deal with her affairs and sell the two businesses, which were turning out unprofitable. This done, he told Marie, whose growing attachment to him, strange as it may seem, had turned to love, that now at last they could be free. He would sell the two shops, and with the money released by the sale they could go away to-gether. Suddenly Madame Boyer fell ill, and was confined to her bed. Left to themselves, the growing passion of Marie Boyer for Vitalis culminated in her surrender. But for the sick mother the happiness of the lovers was complete. If only her illness were more serious, more likely to be fatal in its result! "If only God would take her!" said Vitalis. "Yes," replied her daughter, "she has caused us so much suffering!"

To Madame Boyer her illness had brought hours of torment, and at last remorse. She realised the duplicity of her lover, she knew that he meant to desert her for her daughter, she saw what wrong she had done that daughter, she suspected even that Marie and Vitalis were poisoning her. Irreligious till now, her thoughts turned to religion. As soon as she could leave her bed she would go to Mass and make atonement for her sin; she would recover her power of attorney, get rid of Vitalis for good and all, and send her daughter back to a convent. But it was too late. Nemesis was swift to overtake the hapless woman. Try as he might, Vitalis had found it impossible to sell the shops at anything but a worthless figure. He had no money of his own, with which to take Marie away. He knew that her mother had resolved on his instant dismissal.

As soon as Madame Boyer was recovered sufficiently to leave her bed, she turned on her former lover, denounced his treachery, accused him of robbing and swindling her, and bade him go without delay. To Vitalis dismissal meant ruin, to Marie it meant the loss of her lover. During her illness the two young people had wished Madame Boyer dead, but she had recovered. Providence or Nature having refused to assist Vitalis, he resolved to fall back on art. He gave up a whole night's rest to the consideration of the question. As a result of his deliberations he suggested to the girl of seventeen the murder of her mother. "This must end," said Vitalis. "Yes, it must," replied Marie. Vitalis asked her if she had any objection to such a crime. Marie hesitated, the victim was her mother. Vitalis reminded her what sort of a mother she had been to her. The girl said that she was terrified at the sight of blood; Vitalis promised that her mother should be strangled. At length Marie consented. That night on some slight pretext Madame Boyer broke out into violent reproaches against her daughter. She little knew that every reproach she uttered served only to harden in her daughter's heart her unnatural resolve.

On the morning of March 19 Madame Boyer rose early to go to Mass.

Before she went out, she reminded Vitalis that this was his last day in her service, that when she returned she would expect to find him gone. It was after seven when she left the house. The lovers had no time to lose; the deed must be done immediately on the mother's return. They arranged that Vitalis should get rid of the shop-boy, and that, as soon as he had gone, Marie should shut and lock the front doors of the two shops. At one o'clock Madame Boyer came back. She expressed her astonishment and disgust that Vitalis still lingered, and threatened to send for the police to turn him out. Vitalis told the shop-boy that he could go away for a few hours; they had some family affairs to settle. The boy departed. Madame Boyer, tired after her long morning in the town, was resting on a sofa in the sitting-room, at the back of the milliner's shop. Vitalis entered the room, and after a few heated words, struck her a violent blow in the chest. She fell back on the sofa, calling to her daughter to come to her assistance. The daughter sought to drown her mother's cries by banging the doors, and opening and shutting drawers. Vitalis, who was now trying to throttle his victim, called to Marie to shut the front doors of the two shops.

To do so Marie had to pass through the sitting-room, and was a witness to the unsuccessful efforts of Vitalis to strangle her mother. Having closed the doors, she retired into the milliner's shop to await the issue. After a few moments her lover called to her for the large cheese knife; he had caught up a kitchen knife, but in his struggles it had slipped from his grasp. Quickly Marie fetched the knife and returned to the sitting-room. There a desperate struggle was taking place between the man and woman. At one moment it seemed as if Madame Boyer would get the better of Vitalis, whom nature had not endowed greatly for work of this kind. Marie came to his aid. She kicked and beat her mother, until at last the wretched creature released her hold and sank back exhausted. With the cheese knife, which her daughter had fetched, Vitalis killed Madame Boyer.

They were murderers now, the young lovers. What to do with the body? The boy would be coming back soon. The cellar under the kitchen seemed the obvious place of concealment. With the help of a cord the body was lowered into the cellar, and Marie washed the floor of the sitting-room. The boy came back. He asked where Madame Boyer was. Vitalis told him that she was getting ready to return to Montpellier the same evening, and that he had arranged to go with her, but that he had no intention of doing so; he would accompany her to the station, he said, and then at the last moment, just as the train was starting, slip away and let her go on her journey alone. To the boy, who knew enough of the inner history of the household to enjoy the piquancy of the situation, such a trick seemed quite amusing. He went away picturing in his mind the scene at the railway station and its humorous possibilities.

At seven o'clock Vitalis and Marie Boyer were alone once more with the murdered woman. They had the whole night before them. Vitalis had already considered the matter of the disposal of the body. He had bought a pick and spade. He intended to bury his former mistress in the soil under the cellar. After that had been done, he and Marie would sell the business for what it would fetch, and go to Brussels—an admirable plan, which two unforeseen circumstances defeated. The Rue de la Republique was built on a rock, blasted out for the purpose. The shop-boy had gone to the station that evening to enjoy the joke which, he believed, was to be played on his mistress.

When Vitalis tried to dig a grave into the ground beneath the cellar he realised the full horror of the disappointment. What was to be done? They must throw the body into the sea. But how to get it there? The crime of Billoir, an old soldier, who the year before in Paris had killed his mistress in a fit of anger and cut up her body, was fresh in the recollection of Vitalis. The guilty couple decided to dismember the body of Madame Boyer and so disfigure her face as to render it unrecognisable. In the presence of Marie, Vitalis did this, and the two lovers set out at midnight to discover some place convenient for the reception of the remains. They found the harbour too busy for their purpose, and decided to wait until the morrow, when they would go farther afield. They returned home and retired for the night, occupying the bed in which Madame Boyer had slept the night before.

On the morning of the 20th the lovers rose early, and a curious neighbour, looking through the keyhole, saw them counting joyously money and valuables, as they took them from Madame Boyer's cashbox. When the shop-boy arrived, he asked Vitalis for news of Madame Boyer. Vitalis told him that he had gone with her to the station, that she had taken the train to Montpellier, and that, in accordance with his plan, he had given her the slip just as the train was starting. This the boy knew to be false: he had been to the station himself to enjoy the fun, and had seen neither Vitalis nor Madame Boyer. He began to suspect some mystery. In the evening, when the shops had been closed, and he had been sent about his business, he waited and watched. In a short time he saw Vitalis and Marie Boyer leave the house, the former dragging a hand-cart containing two large parcels, while Marie walked by his side. They travelled some distance with their burden, leaving the city behind them, hoping to find some deserted spot along the coast where they could conceal the evidence of their crime. Their nerves were shaken by meeting with a custom-house officer, who asked them what it was they had in the cart. Vitalis answered that it was a traveller's luggage, and the officer let them pass on. But soon after, afraid to risk another such experience, the guilty couple turned out the parcels into a ditch, covered them with stones and sand, and hurried home.