The collection includes two novels by Ivan Pogonin, the main character of which, detective Mechislav Kuntsevich, goes from a small criminal episode to big things. “The Ringmaster’s Diamonds” is about the theft of jewelry and the murder of the son of a high-ranking courtier. “White Gold” is about the machinations of sugar traders. Pogonin's retro detective stories, as always, are distinguished by close attention to detail, compliance with the spirit of the times, and historical authenticity.