Agatha Christie's book "The Mysterious Case at Stiles" tells about the detective adventures of the famous Belgian detective Hercule Poirot. The story begins with the mysterious poisoning of the rich Mrs. Inglesdale in her mountain castle. Guests and servants have many secrets, but the solution to this mystery lies in the details. Hercule Poirot will turn out to be an excellent thinker and will catch the real culprit thanks to his unsurpassed logic and observation. This book became the first novel about Hercule Poirot and the beginning of the great literary journey of one of the most famous writers of the detective genre - Agatha Christie.