Coming Undone (A split And Glass fanfiction)

At the age of 8, Athena was adopted by a man named John cooke and his 9 year old niece, Casey cooke....athena thought life would get better but sadly it doesn't....its just like how it was with her real parents...abusive rapist....athena starts to develop D.I.D and Doesnt eat as much....Casey cooke loves her sister with all of her heart.

What happens when Athena meets Kevin and his friends? Will she help the girls or stay silent?