"Listen, you. Don't threaten me. I could make your life a nightmare. He put his hand in front of her face and unfolded three fingers as he said, I'm F-B-I. She smiled. It wasn't the reaction he expected. You want to talk nightmares? she said. She put her hand up to his face and unfolded her three fingers. I'm I-R-S."

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I think writing about the time in Hermione’s life that I write about – growing from childhood into womanhood, literally, I think it brought back to me how very difficult it is.So much is expected of you as you become a woman, and often you are asked to sacrifice parts of you in becoming a girl, I would say. Hermione doesn’t.

— J. K. Rowling