© 2016 Shmoop University, Inc. All rights reserved.
Mrs. Frisby and the Rats of NIMH

Mrs. Frisby and the Rats of NIMH


by Robert C. O'Brien

Mrs. Frisby and the Rats of NIMH Chapter 12 Summary


  • Mrs. Frisby can only read a little bit, but she reads enough to wonder where or what NIMH is.
  • Her curiosity about the rats is overwhelming and she wants to go explore all over their digs
  • She opens the door to go exploring, but decides that snooping isn't very polite (indeed!), so she returns to the library and shuts the door. 
  • When she resumes examining the board, she sees that the rats have written amounts of Oats, Wheat, Corn, and Seeds.
  • And now she's more confused than ever, of course.
  • As she is puzzling this over, a small girl rat walks in and introduces herself as Isabella. 
  • Mrs. Frisby asks what NIMH is and Isabella says she doesn't know what it is, but that the older rats came from there and no one wants to go back. 
  • Sort of out of nowhere, Isabella declares that she wants to marry Justin. Um, good for her?
  • Mrs. Frisby is more interested in the Plan than in Isabella's love life, however, and asks her what the Plan is. 
  • Isabella says that her Mom doesn't like the Plan, but that they're gonna go along with it, unlike Jenner and his friends, who were unpopular in the colony. 
  • Mrs. Frisby asks who Jenner is, and Isabella quickly (and mysteriously) says that he left. 
  • Just then, Nicodemus, Mr. Ages, Justin, and another rat come into the library.

People who Shmooped this also Shmooped...