The Mysterious Stiles Incident is Agatha Christie’s very first novel. In this book, published in 1920, the reader meets for the first time with the most famous detective of the 20th century - the moustached Belgian Hercule Poirot, as well as with his friend and assistant Hastings .. It was here that Poirot was first given the opportunity to demonstrate his deductive abilities and solve a mysterious crime (poisoning Mrs. Inglethorpe, the mistress of the Stiles estate), based on all the known facts. In the house of Hercule Poirot broke emaciated man in a dirty suit He is barely alive.... A few drops of cognac bring him to his senses. A person is trying to explain something, but he only has the strength to write a large number “4” on a piece of paper several times...