Who shows up at the shelters that evening lord of the flies chapter 10

"as one of our outstanding historical figures once said, ‘when a great democracy is destroyed, it will not be because of enemies from without but rather because of enemies from within.’" (paragraph 7) how does this quote reveal mccarthy’s point of view and advance the purpose of his speech?

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

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