Mrs. Frisby and the Rats of NIMH

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Mrs. Frisby and the Rats of NIMH
Mrs frisby and the rats of nimh.jpg
First edition
Author Robert C. O'Brien
Publisher Atheneum
ISBN 0-689-86220-2
OCLC 144493
LC Class PZ10.3 O19 Mi
Followed by Racso and the Rats of NIMH

Mrs. Frisby and the Rats of NIMH is a 1971 children's book by Robert C. O'Brien, with illustrations by Zena Bernstein. The winner of the 1972 Newbery Medal, the story was adapted for film in 1982 as The Secret of NIMH.

The novel relates the plight of a widowed field mouse, Mrs. Frisby, who seeks the aid of a group of former laboratory rats in rescuing her home from destruction by a farmer's plow, and of the history of the rats' escape from the laboratory and development of a literate and technological society.

The work was inspired by the research of Dr. John B. Calhoun on mice and rat population dynamics at the National Institute of Mental Health from the 1940s to the 1960s.[1]

Plot summary[edit]

Mrs. Frisby's son, Timothy, is ill just as the farmer Mr. Fitzgibbon begins preparation for spring plowing in the garden where the Frisby family lives. Normally she would move her family, but Timothy would not survive the cold trip to their summer home. Mrs. Frisby obtains medicine from her friend Mr. Ages, an older white mouse. On the return journey, she saves the life of Jeremy, a young crow, from Dragon, the farmer's cat - the same cat who had killed her husband, Jonathan. Jeremy suggests she seek help in moving Timothy from an owl who dwells in the forest. Jeremy flies Mrs. Frisby to the owl's tree, but the owl says he can't help until he finds out that she is the widow of Jonathan Frisby. He suggests that Mrs. Frisby seek help from the rats who live in a rosebush near her.

Mrs. Frisby discovers the rats have a literate and mechanized society. They have technology such as elevators, have tapped the electricity grid to provide lighting and heating, and have acquired other human skills, such as storing food for the winter. Their leader, Nicodemus, tells Mrs. Frisby of the rats' capture by scientists working for a laboratory located at the National Institute of Mental Health (NIMH) and the subsequent experiments that the humans performed on the rats, which increased the rats' intelligence to the point of being able to read, write, and operate complicated machines, as well as enhancing their longevity and strength. This increased intelligence and strength allowed them to escape from the NIMH laboratories and migrate to their present location. Jonathan Frisby and Mr. Ages were the only two survivors of a group of eight mice who had been part of the experiments at NIMH, and made the rats' escape possible. Out of respect for Jonathan, Nicodemus agrees to help Mrs. Frisby's family. The rats move her house to a location safe from the plow.

Meanwhile, the rats are preparing "The Plan," which is to abandon their lifestyle of dependence on humans, which some rats regard as theft, for a new, independent farming colony. Before Mrs. Frisby's arrival, a group of seven rats led by a rat named Jenner left the colony because they disagreed with "The Plan", and are presumed to have died in an accident at a nearby hardware store. This incident has attracted the attention of a group of men, who never identify themselves, and they have offered to exterminate the rat colony on Fitzgibbon's land free of charge for him.

To move the house, the rats have to drug Dragon, the farmer's cat, as it is too dangerous to work in the open without any place to hide. However, Mr. Ages has a broken leg and cannot dash to Dragon's bowl to put in the drug. Since the other rats are too big to fit into the hole in the wall to enter the house, Mrs. Frisby volunteers to go. Unfortunately, she is caught by the family's son, Billy, who puts her in a cage. At night, Justin (one of the rats) comes to save her and manages to get her out of the cage. The successful house move allows the mouse family to remain while Timothy recovers before moving to their summer home.

Mrs. Frisby overhears the Fitzgibbons discussing the men during her captivity and reports back to the rats. Thanks to her warning, the rats have time to plan their escape.

Although the rats have not yet had time to move everything they needed for "The plan", they manage to destroy their underground rooms, and create the illusion that they are just regular rats by placing rubbish in the remaining rooms. As the others move, ten rats stay behind so the exterminators would not think the rat hole has been abandoned. When the exterminators fill the rat hole with poisonous gas, eight of the ten rats manage to escape, while two rats die in the hole. It is not revealed exactly who these two are.

Once Timothy recovers, Mrs. Frisby and her family move to their summer home, and they make plans to visit the rats when they return to their winter home again.

Related works[edit]

O'Brien's daughter, Jane Leslie Conly, wrote two other novels based on the rats of NIMH. Racso and the Rats of NIMH tells the story of a city rat who runs away to join the new colony, befriending Timothy, while saving the colony from a flood along the way. In R-T, Margaret, and the Rats of NIMH, the rats rescue two lost human children who in turn help to save the colony before winter.

In 1982, the animated film The Secret of NIMH was released, directed by Don Bluth. The film adds a mystical element completely absent from the novel, with Nicodemus portrayed as a wise, bearded old wizard with a magic seeing mirror and enchanted amulet, rather than middle-aged and with an eye patch. The character of Jenner is made a villain who is still present with the rats, rather than having left them before the story began and not being villainous. Additionally, Mrs. Frisby's name was changed to Brisby to avoid trademark infringement with the Frisbee.[2] The crow Jeremy receives greater prominence as comic relief in the film than he has in the book.

Parallels in science[edit]

Research published in the March 2013 issue of Cell Stem Cell details the injection of human glial cells into the brains of newborn mice.[3] Upon maturation, the mice were faster learners.[4]

Awards[edit]

Awards
Preceded by
Summer of the Swans
Newbery Medal recipient
1972
Succeeded by
Julie of the Wolves
Preceded by
The Trumpet of the Swan
Joint winner of the
William Allen White Children's Book Award

with The Headless Cupid
1974

Succeeded by
Dominic

References[edit]