Mrs. Frisby and the Rats of NIMH by Robert C. O’Brien – This book tells the story of Mrs. Frisby, a widowed mouse, who needs to save her home. With the help of a group of technologically advanced rats, Mrs. Frisby is able to move her home and her ill son to a safe location. In return, she is able to save the rats from certain extermination. Lessons could emphasize the ideas of friendship and loyalty, overcoming adversity, and what it means to be a hero.