Nightshadow... A Young Justice Fanfiction

Nightshadow, the most feared assassin in Gotham. Nobody knows if its a boy or a girl, or what she looks like. They only know the blood chilling name. Nightshadow is actually a 17 year old girl who has been trained to be a killing machine since she was 9. Working for the Children of Shadows, a secret assassin group, s...