perfectly normal, thank you very much (смешанная)

When the letter arrives, Lily is almost as excited as Petunia. She writes Albus Dumbledore to ask if she can go too, and if she cries a little when the answer comes back no she doesn't tell anyone. Lily waves from the train platform, writes diligently, and listens with excitement whenever her big sister deigns to share stories of magic.
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Anonymous asked for "what if Petunia was a witch and Lily a Muggle?"