The famous detective duo of Leonov and Makeyev. Police colonels Gurov and Kryachko receive an invitation to a silver wedding from an old friend who works as a journalist in a Siberian city. The party is a success—however, the next morning something goes wrong: the son of the official Mariyana, who lives next door to the journalist, disappears. The ten-year-old boy went to the store and didn’t come back; there were no extortion attempts or threats. Searches in the area yield nothing. Gurov starts carefully studying Mariyana’s surroundings and notices that some people behave far too strangely. Suspicions aren’t in vain: the most terrible part of this story unfolds later. Nikolay Leonov, who previously worked as an investigator in the Moscow Criminal Investigation Department (MUR), knew how to untangle the most complex crimes—so his books are always full of plausible and gripping events with an unexpected twist. At the center of these stories is Colonel Lev Gurov, an outstanding detective and a man with many positive qualities. Friends respect him, enemies fear him, and women adore him. He is a true hero of Russian detective fiction. Novels about his adventures have attracted fans of the genre for four decades. The classic series “Black Cat” includes more than 200 books, distributed in million-copy print runs.