A theme you could pick out in The Glass Castle would be adversity and what it takes to overcome it. Jeannette Walls has to overcome the adversity of having no money and no real home. This adversity molds and shapes Jeannette into a hard working and resilient child. Rex Walls or the father is the definition of a flat character. Throughout the book he doesn‘t change much while thinking he knows what‘s best. Rex does do his best with what he has …