Final answer:
In the novel 'Rain Reign', Rose's aide is named Mrs. Kushel, who assists Rose, a girl with high-functioning autism, in navigating school challenges and coping with her disability.
Step-by-step explanation:
In the novel Rain Reign by Ann M. Martin, Rose's aide is named Mrs. Kushel. Mrs. Kushel plays a key role in supporting Rose, the main character, who is a young girl with high-functioning autism and an obsession with homonyms. As Rose's aide at school, Mrs. Kushel helps her adapt to her surroundings and cope with her disability while facing the challenges that come with it. The story provides readers with insights into the experiences and perspectives of individuals with autism, as well as the importance of compassion and understanding from those around them.