About the book: 2016 / The Black Diamond "Noir De La Roche" - "Black Cliff" - was stolen from a prince who arrived in the 19th century Moscow from Central Africa. The precious stone was stolen by his servant-translator, with whom the noble nobleman traveled throughout Russia. They did not have time to bring the fraudster to trial, but his dead body was found. The diamond disappeared irretrievably, but soon fell into the hands of the famous thief Sonya Zolotaya Ruchka... Investigator Sergei Dulo came to the restaurant to meet with the famous lawyer Susanna Milkina, but suddenly an explosion occurred in the luxurious hall... Milkina died, and Sergei miraculously remained alive and took an active part in the investigation explosion. Very unsightly episodes were discovered in Susanna's past, one of which involved the murder of a famous actress, a Soviet film star, and the theft of a priceless black diamond from her.…