What is the theme in the book ellwn foster?

Determination Despite Adversity. Ellen must continually overcome terrible hardship—sexual abuse, alcoholism, neglect, poverty, cruelty. Throughout it all, however, she is determined to endure and knows that she deserves better than the horrific circumstances under which she is suffering.

I do reccomend looking at the back summery, getting an idea. It is more useful to read it, as this is an amazing book.