The legendary detective tandem Leonov-Makeev.

Interior Ministry Colonel Lev Gurov receives an invitation to a gala dinner from a well-known Russian oligarch. It is expected that the millionaire's estate will bring together the largest businessmen, artists and musicians – the entire color of society. The evening promises to be unforgettable... unexpectedly, in the midst of the celebration, one of the ladies announces that her family jewels have disappeared. At the same time, the staff member serving the banquet disappears. Was there a trivial theft? Gurov begins an investigation and soon discovers the corpse of a missing servant on the riverbank. But he doesn't have any jewelry on him.… The detective realizes that a murder has occurred, and this is only part of the criminal plot. What else will the villain come up with, remaining free?..

Nikolai Leonov, a former MURA investigator, knew firsthand how the most complicated criminal cases are solved. Therefore, each of his books is a true, exciting story with unpredictable intrigue and an unexpected ending. The main character of these books, Colonel Lev Gurov, is a high—class detective, moreover, with a lot of positive human qualities. He is respected by his friends, feared by his enemies, and loved by women. He is a real Russian superman. Novels about Lev Gurov have been attracting fans of the Russian detective story for forty years. The classic "Black Cat" series has more than 200 books, which have been published in tens of millions of copies.