3rd independent reading book

For my third independent reading book i will read Invisible Girl. The book really interested me when i began reading in class. I want to know what happens to the girl , if her mother ever comes back, is she ever able to regain her life. Will she always be fearful?. The story interest me because she states that when her mother drinks her father never drinks but when her mother left he began drinking i wonder if he will begin the same cycle as her mother.