There was story i read about 2 years ago and it was about a human turning into a pony filly and spitfire adopting her/him and then everypony turning against her after she gets a hole country calming she is a threat also caravan palaces song lone digger was in it and at the end the filly dies i can remember how but it had frank Sinatra in it for the last song if anyone can tell me what the name of the story is

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A Winter's Rose