Robert C O'Brien

Having no one to help her with her problems, a widowed mouse visits the rats whose former imprisonment in a laboratory made them wise and long lived. Mrs. Frisby, a widowed mouse with four small children, is faced with a terrible problem. She must move her family to their summer quarters immediately, or face almost certain death. But her youngest son, Timothy, lies ill with pneumonia and must not be moved. Fortunately, she encounters the rats of NIMH,...

Seemingly the only person left alive after the holocaust of a war, a young girl is relieved to see a man arrive into her valley until she realizes that he is a tyrant and she must somehow escape.