Polina Svirskaya somehow felt it: they won’t let them rest peacefully! She and her husband, the investigator Sergey Dulo, got nearly to the edge of the world—the shore of Lake Baikal—but even there work caught up with him. Sergey was asked to help local detectives investigate a daring crime: bandits attacked the vehicle transporting gold from the mine, killed the guards, seriously wounded the driver, and stole the valuable cargo. Sergey threw himself into his familiar work, but Polina didn’t waste time either. After meeting a colorful old man, a local historian, she became truly engrossed in searching for the legendary Kolchak gold—according to the legend, during the Civil War several railcars with bullion fell to the bottom of Baikal and have not been found to this day…