In Sir Arthur Conan Doyle's classic detective story "The Adventure of the Speckled Band," Sherlock Holmes proves himself a clever and memorable detective. Holmes uses his fantastic powers of observation to solve crimes and remain unforgettable to readers. For example, upon meeting Helen Stoner, Holmes immediately notices she came by train without being told, deducing this from a ticket stub in her glove. Conan Doyle's detective has remained popular for over a century due to his superior abilities to observe clues and solve crimes through admirable deduction.