“When the World Screamed” is a science fiction short story by British writer Arthur Conan Doyle, featuring his character Professor Challenger. It was first published in Liberty magazine, from 25 February to 3 March 1928. Sir Arthur Ignatius Conan Doyle KStJ DL was a British writer and medical doctor. He created the character Sherlock Holmes in 1887 when he published A Study in Scarlet, the first of four novels and more than fifty short stories about Holmes and Dr. Watson.
