Stevenson's novel "Dr. Jekyll and Mr. Hyde" was published in 1886. In it, the author discusses the topic of duality and tries to rethink it. The plot tells about the strange events taking place in London, in which Edward Hyde, a cruel and disgusting man, takes a direct part. These events attract the attention of Mr. Utterson, who works as a notary public. Hyde is somehow connected to Utterson's friend, Dr. Jekyll. It is this connection that the notary is interested in. He decides to delve into the issue and try to get to the truth. How will this investigation end? The answer lies in the pages of the book. The book contains three fascinating works – "Dr. Jekyll and Mr. Hyde", "The Misadventures of John Nicholson" and "Markheim". The works are presented in the original. Enjoy the stories without adaptations and abbreviations!