I need to write a short story about a character who discovers an old diary. The story should be mysterious and engaging. Your response should contain at least 5 paragraphs. Paragraphs are separated with the markdown divider: ***. In your response, the word "diary" should appear at least 3 times. Highlight at least 2 sections in your answer with markdown, i.e., *highlighted section*. At the end of your response, please explicitly add a postscript starting with P.S.
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