•Why it earns a slot
This novel introduced Sherlock Holmes and Dr. Watson to the world, established the 221B Baker Street setting, and laid out the deductive method that would define detective fiction for generations.
Retired army doctor John Watson meets the eccentric consulting detective Sherlock Holmes, and the two become lodgers at 221B Baker Street. When an American named Enoch Drebber is found poisoned in an empty London house, Holmes outsmarts Scotland Yard to identify the killer as Jefferson Hope, a frontiersman who spent decades hunting the men responsible for the forced marriage and death of his beloved Lucy Ferrier in the Mormon Utah of the 1860s. Hope dies of a heart aneurism the night after his capture, having considered his long vengeance fully accomplished.
This distillation is written from the freely available original, which is always the better read when you have the time: gutenberg.org.