He was sent to For-l’Évêque; and from the very first day of his imprisonment he began to consider how he could recover his liberty. He remembered that one of the body-guard, who had been imprisoned in the same place, had nearly made his escape through a window of a loft, which looked out upon one of the quays, then called the Valley of Misery, and that he had failed, owing solely to his terror at the sight of the precipice on which his prison was built.
Bucquoy, however, made up his mind to repeat this attempt. He tried at first to form a clear idea of the plan of this terrible place. He discovered that the loft in question served as a kind of antechamber to his small cell, and that it was, at the same time, the lumber-room of the prison. Wishing to make sure of everything before risking his life, he one day pretended to be ill, and asked to be led upstairs to breathe the air at a small window which over-looked that part of the building. The height from the quay was appalling; and, in addition to that, every one of the numerous window-gratings to which he would have to cling in making his descent was covered with short, sharp spikes. The sight was enough to strike terror into the stoutest heart.
When he had once more been locked up in his cell, he, however, confirmed himself in his resolution to escape through the loft. All that was necessary was to find means to leave the cell unobserved, and to reach a certain part of the antechamber.
To get out without the consent of the gaoler, he would have had to break the door down; but he soon saw that it would be impossible to do this, as he was wholly unprepared with tools, and as the noise of his operations would be certain to alarm his guards. It occurred to him, however, that he might burn away the door; and with this view he obtained permission to cook for himself in his own cell. He asked for a few eggs and some charcoal, and paid liberally for both, in order the more readily to induce the gaoler to supply them. All being ready, and the whole household asleep, he placed the brasier close to the door and fanned the flame until it ignited the ponderous timbers. When he had by this means burnt a hole large enough to admit his body, he passed through, first taking care to extinguish the flames, as it was not his wish to destroy the building. In this operation he was nearly suffocated by the smoke from the smouldering beams. He was without a rope to tie to the window of the loft, but he made a substitute for it by binding together a number of strips of webbing cut from a mattrass which he found among the furniture. He then fastened this band to a bedstead, which he dragged to the window, and, gliding gently down, was fortunate enough to pass the windows without receiving any fatal injury from the spikes, and to reach the quay. It was daybreak, and the market people opening their shops did not fail to observe him, all torn and bloody as he was, for many of the spikes had entered his flesh. But a greater danger threatened him, in the unwelcome attentions of a number of young men, who had only just risen from supper, and who chased him through the streets with drunken cries. A timely shower of rain, however, dispersed them, and he was saved.