La senora Frisby y las ratas de NIMH / Mrs. Frisby and the Rats of NIMH

Mrs. Frisby, a widowed mouse with four children, must move her family to their summer quarters immediately, or face certain death. But her youngest son lies ill with pneumonia and must not be moved. Fortunately, she encounters the rats of NIMH, an extraordinary breed of highly intelligent creatures, who come up with a solution to her dilemma.