Paris of the 1860s. The Prefect of the Seine department, Baron Haussmann, began to thoroughly cut and clean up the capital, seeking to transform the tangled Babylon of dark side streets and dead ends into a neat network of bright avenues and boulevards. At the same time, the “other city architect” carried on his “road works.” He ensnared Paris—the city of brilliance and poverty—with a spiderweb network of invisible corridors and loopholes. In all layers of society his agents hid, waiting for the signal to begin hostilities. And at last, the hour came.
In the next volume of “Masters of Adventure,” one of the best action-filled novels of the 19th century enters—“The Slaves of Paris.” Its author, the “father of the French detective,” Émile Gaboriau, brought a great deal that was new to the developing genre, having a huge influence on Arthur Conan Doyle and his stories about Sherlock Holmes.