How had he got there? That is what no one has ever been able to explain or understand. The lightning must, at the same time, have hindered and helped him. Had he made use of the ladders and scaffoldings of the slaters to get from roof to roof, from enclosure to enclosure, from compartment to compartment, to the buildings of the Charlemagne court, then to the buildings of the Saint-Louis court, to the outer wall, and thence to the hut on the Rue du Roi-de-Sicile? But in that itinerary there existed breaks which seemed to render it an impossibility. Had he placed the plank from his bed like a bridge from the roof of the Fine-Air to the outer wall, and crawled flat, on his belly on the coping of the outer wall the whole distance round the prison as far as the hut? But the outer wall of La Force formed a crenellated and unequal line; it mounted and descended, it dropped at the firemen’s barracks, it rose towards the bathhouse, it was cut in twain by buildings, it was not even of the same height on the Hotel Lamoignon as on the Rue Pavée; everywhere occurred falls and right angles; and then, the sentinels must have espied the dark form of the fugitive; hence, the route taken by Thénardier still remains rather inexplicable. In two manners, flight was impossible.