It is kind of a hard book to describe.
I read it and it disturbed me so much I put it in the donation box the next week.
I remember becoming really obsessed with wanting to know what happened to the youngest sister. I was really worried about her, to the point I became a stalker. I was Googling her name and trying to find her. I did come up with an address in California (I swear I never contacted her) and an interview with the author that stated one of the most often asked questions of her was how the youngest sister was doing now and she wanted to reassure everybody that the sister was ok. I left it at that.
I'm not sure how the kids really felt about the parents. Kind of a "they are what they are and what are you going to do?" attitude, but there is also loads of resentment there. Still, after her Father died the author did take her Mother into her home to live. I think her brother felt much more negativity towards the parents and what they put their children through than any of the girls.