How does Boo Radley develop the theme of To Kill A Mockingbird? This kind of character, who rarely appears but is referred to by others and helps develop the theme, is featured in many books.
At first, Scout and Jem, being the young children that they are, see Boo as nothing more than a creepy boogie-man figure, an object of grim fascination. As they don't really seem him as a human being, they're not prepared to get to know him as one. Instead, they dehumanize him by making him a bit player in their little games.
As time goes by, however, and as Scout and Jem mature, their attitude towards Boo gradually changes. Boo is a catalyst in this regard, reaching out to the Finch children by leaving them little keepsakes in the knot of a tree. Scout and Jem respond by looking at Boo in a completely different way. Although they're still not quite sure what to make of him, at least they've now put behind them the frankly insulting Boo Radley game.
It won't be until much later on in the story that...
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