Assassins bloodline

"An average family that's what I have." She thought. Well she was wrong.
The towns people all talk of figures lurking in the night. Some think they are the city's Angels others know they are assassins and want them gone. When the wrong people find out who the assassins are they attack at full force. This drives them to the brotherhood. Here the youngest will learn what it means to be an assassin and she will thrive among them and will go down in history as someone who was never there because none of her enemies ever live to tell of there encounter with her.

That is until a girl from 2016 is found with the same genetics as the mysterious assassin from long ago.....