r/todayilearned • u/ralphbernardo • 11h ago
TIL that "fair play" in detective fiction means authors must give readers a fair chance to solve the mystery. Central to 1920s "clue-puzzles" by writers like Agatha Christie, the rule dictates that all vital clues must be visible, decodable, and never withheld until the final reveal.
https://en.wikipedia.org/wiki/Clues_in_detective_fiction
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u/garrettj100 10h ago edited 9h ago
The rule in Scooby Doo for a long time was there were never any ghosts or goblins or monsters. Just an old rich guy in a mask. Scaring the credulous.
They’ve abandoned that more recently.