What is the theme in Forged by Fire by Sharon M. Draper?

The effects of abuse are a main theme in the story. The effects of abuse are apparent from the time the story opens. Gerald, at only three years old, has already learned that he has to read his mother's moods, that he has to stay out of her way when she's high, and that the safest place for him is behind the couch where he is not in his mother's line of vision and therefore not likely to bear the brunt of her anger. Gerald escapes the environment, but Angel is not so fortunate. When Gerald meets Angel for the first time, it's hot outside, but Angel is wearing tights.