I had just returned from the capital of the Empire. I thought I’d go fishing, gather ingredients for the handle of a hammer, study calmly, and prepare for exams. But no! Right at fishing, my friend gets arrested. They pin on him the murder of an aristocratic woman—no, not just one murder, but a handful of them, in fact, several dozen! It seems the duke of Bilibin decided to get rid of from the road… One thing I don’t understand. What does the casino “Snake Gorynych” have to do with it? Someone wanted to play roulette with me—Dubo v’s roulette? When all the cartridges are in the drum…