Sir Arthur Ignatius Conan Doyle (1859 – 1930) was a Scottish author, playwright and physician. He is mostly known for his fictional stories of adventures and investigations of Sherlock Holmes and doctor Watson, a private detective from London and his companion. Holmes stories are considered to be one of the greatest assets of the detective genre, but besides them Doyle wrote in multitude of other genres, such as science fiction, fantasy, historical novels and many more. "Horror of the Heights" is short story by Arthur Conan Doyle. The narrative follows Mr. Joyce-Armstrong, a pilot, who was wandering about demise of some certain aviators, who attempted to break the height record. Those deaths had some strange details, which made Joyce-Armstrong’s mind unease. But what would this investigation do to him? Read and find out! Horror of the Heights is a proof that Conan Doyle as a writer went far beyond his iconic detective novels and there is a lot of his talent for you to discover.