Lola Rose by Jacqueline Wilson. When life with Jayni's violent-tempered father becomes too frightening to cope with, Jayni, her mum and her little brother Kenny are forced to escape in the middle of the night.
I have a whole long paragraph I could write to this but I'll keep it short. I love how Snow looks at Emma for the first time as her daughter, and looks at what she's done for herself to get her this far, and is proud. For once, Emma loses that tough woman image, and just becomes the little girl who's always yearned for her parents.