The Mutant Girl (TMNT Fan Fic Book 1)
Victoria was an ordinary New York girl living on her own. She trains herself in ninjutsu(sneaks to classes and watches through the windows down in New Jersey). Victoria wasn't popular, but she wasn't unpopular either(if that makes sense). She hand a handful of friends and had good grades. Although she had great grades, her rep at school wasn't very good(she would often skip). Not to mention she was a bit bi-polar with a small temper. Then one day Victoria's "awesome friends" that dared her to spend the night in the sewers. From that faithful night Victoria's life changes completely.
*I do NOT own TMNT*