When you survive something that should have killed you, your parts - the ones on the inside, those that make you who you are - shift. Sometimes they shift so hard they break. And sometimes they leave you forever.
The girls were fed up. They were sick and tired of being mistreated, neglected and abused. Their Mother had caused them so much pain that it became too much to bare. They needed saving but they felt trapped. They had to figure out how they were going to plan their escape. No one else was going to save them so they had to run...