My favorite novel is "The Hunchback of Notre Dame".
I love a protagonist with a twisted back story.
Twisted Back Story
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Explain Bear
Hey, genius. It's a pun. "Twisted back story" sounds like "twisted backstory", and the main character of the novel has a twisted back because he is a hunchback. People with big brains would understand, but I can see that's not you. The author is making a joke about the fact that he likes the character because of his literal twisted back.