Messing With The Unknown

There where stories that children were told when they were kids, 'Don't go out at night' is what they all said. The world was dangerous at night.
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There were few left.
Little did the world know that she was the last one.
Not seen for 400 years they thought she was dead.
They were glad. Only because they were scared.
But they were disappointed. They didn't know for sure.
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In a little town in the middle of nowhere a new girl appears.
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Her name is Raven Black. Although she had many names, this is the one only few know her by.
Only few have lived to know what she is, for whoever finds out and does not stay quiet or those who get too curious would have to run. Run because they have no chance surviving the thing that runs through the night.
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She has decided to return to the world after a struggle that had her battling her own demons almost cost her, her life.
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Will she be able to keep control of herself?
Will anyone else find out?
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WARNING STRONG LANGUAGE AND VIOLENCE