Newbery Medal Winner

Mrs. Frisby and the Rats of NIMH

by Robert C. O'Brien

Summary

A widowed field mouse named Mrs. Frisby seeks help to save her sick son and her home from the farmer's plow, leading her to a colony of extraordinary rats who escaped a laboratory at the National Institute of Mental Health. These rats gained heightened intelligence and the ability to read through scientific experiments, and they now plan to build a self sufficient society free of stealing from humans. The book blends animal fantasy with science fiction and raises questions about ethics, intelligence, and what it means to live independently.

Historical Context & Significance

The novel inspired the 1982 animated film The Secret of NIMH and launched a series later continued by the author's daughter, Jane Leslie Conly.