Ghosts from the Past

Mitya, Gosha, and Rita, while investigating the theft from the warehouse at the request of their acquaintance, a guard with the rare nickname Diogenes, almost accidentally uncover a crime committed many, many years ago that affected the fate of a very good person and his family. In the apprehension of dangerous criminals Koshchey, Koshkin, and Sobakin, the kids are aided not only by determination and resourcefulness but also by their loyal four-legged friend Pushok. And what role did the fearsome goat Idalgo play in all of this?