The Secret of the Dark Dungeon

Summer, vacation, and boredom!.. What should real detectives Petya and Cruz do at the dacha during the summer vacation? Of course, observe the suspicious neighbor. The guys spend all their free time doing just that. And thanks to their efforts, they manage to track down two dangerous criminals, who have more than one victim on their account. But the guys are not acting alone. They are helped by Dasha and Olya. At the same time, Petya and Cruz, with the help of a village girl Tanya, find a stash. What secrets lie hidden in the dungeon?..