The birth of a great detective In 1887, Arthur Conan Doyle presented the world with one of the most iconic literary characters — Sherlock Holmes, who will make his debut in the book "A Study in Crimson Tones". This work is not only the beginning of the famous cycle, but also lays the foundation for the genre of detective literature, combining a sharp mind and a scientific approach to solving crimes. The main theme of the book is the clash of reason and evil, where Holmes, with his outstanding analytical abilities, becomes a symbol of order and intelligence in a world of chaos. Conan Doyle introduces the reader to the world of Victorian London, where crimes become puzzles that only a brilliant detective can solve. An important part of the work is the contrast between Holmes' scientific method and the traditional methods of investigation used by his colleagues at Scotland Yard. Separately, it is worth noting the interaction between Holmes and Dr. Watson, which begins in this work. Watson, as a narrator, helps to delve into mysteries with Holmes, admiring his insight, and also serves as a kind of bridge between the brilliant detective and ordinary people. The investigation itself, related to the mysterious murder, impresses with its structure and attention to detail. Conan Doyle builds an interesting plot, gradually bringing the reader to the solution. The finale of the book, as expected, demonstrates the power of Holmes's mind, but at the same time leaves behind important moral questions about justice and retribution. The book offers not just a solution to the puzzle, but also a reflection on what motivates criminals, and at what cost people achieve their revenge. "A Study in crimson tones" is a classic work that not only captures with its detective story, but also immerses into the complex world of human emotions and motives. The beginning of the legend of Sherlock Holmes in this book promises an exciting journey for those who appreciate intellectual stories full of mysteries and surprises. 8 out of 10