A Second Century of Whodunnits

A reading project spanning a century of crime fiction reveals how the genre evolved from the Golden Age of detective fiction to contemporary thrillers. By selecting one representative novel for each decade from the 1920s to the 2020s, the experiment highlights the transition from traditional country house mysteries to psychological narratives and modern police procedurals. Key insights include the enduring influence of 19th-century gothic fiction on early 20th-century writers, the shift toward character-driven stories in later decades, and the successful integration of cross-genre elements in recent bestsellers like *Rivers of London*. This chronological survey demonstrates that while classic tropes remain a touchstone for the genre, contemporary authors increasingly prioritize complex character development and social commentary over the rigid puzzle-solving mechanics that defined the early detective fiction era.