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One reason to give a hero a mark is simply for writing efficiency, between characters in the book. Everybody (in the book) recognizes them, except perhaps children (and often even children). In Ha...
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#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/35647 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/35647 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
One reason to give a hero a mark is simply for writing efficiency, between characters in the book. Everybody (in the book) recognizes them, except perhaps children (and often even children). In Harry Potter, the lightning bolt scar means everybody on the train, though they have never seen him before, knows his name and who he is and his legend. It saves exposition, introductions, and endless "Oh, **_that_** Harry," dialogue. It makes the writing tighter. A person can look for Bill without ever having met or being able to describe Bill; "he's got a diagonal sword scar across his forehead, have you seen him?" "He's got one blue eye and one brown, have you seen him?" The audience accepts it, and it reduces the word count and increases the fame of the hero, both good things in a story.