How does the third sentence (However Blume also has. ...) support the main idea of the paragraph It tells you that the author once wrote for children but has changed her focus and preference to adults?

The third sentence highlights the author's evolution from writing for children to focusing on adult literature, reinforcing the main idea that her work has matured over time. This shift in audience reflects a broader change in her artistic intent and themes, suggesting a deeper exploration of complex issues. By mentioning this transition, the sentence underscores the author's growth and adaptability in her writing career.