Alexander Bushkov confirms the reputation of a master at reviving history in the most exciting genres. Incredible intrigue, unbearable tension of the plot, thorough knowledge of the subject. The adventures of Aleksey Bestuzhev in the pursuit of the far-reaching device—Štěpanek’s apparatus—continue through the streets and outskirts of Paris. The detective finds himself in a European nest of revolutionaries and anarchists of all kinds and begins a real “hunt for the devil.” Who—whom?