he designed the structure for moving the house
Mrs. Frisby volunteers to drug Dragon, the cat, in order to help the rats move her house to a safer location without being spotted by him. She does this because she knows that the rats are helping her and her family, and she wants to show her gratitude by assisting them with their plan.
help
So she and her family didn't get killed
nicodemus is a rat that is very intelligent and helps mrs frisby move her home.
The shrew
he didnt
There are several "main" characters in "Mrs. Frisby and the Rats of Nimh". Some of them are Timothy, Teresa, Cynthia, Martin, Mrs. Frisby, Nicodemus, the rats, Mr. Fitzgibbon, Mrs. Fitzgibbon, Dragon, Jeremy, Brutus, Arthur, Justin,owl, Mr. Frisby, Jenner, Mr. Ages, Isabella, Julie, George, Dr. Shultz, Billy, and the shrew. Mrs.Frisby would be considered the specific main character.
so they don't get killed by the plow.
Mrs.Frisby moved her house to the lee of the stone with the help of the rats.
they move in w/ the rats of nimp
The climax of "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien occurs when Mrs. Frisby enlists the help of the rats of NIMH to move her house before it can be destroyed by the farmer's plow. It is a tense and dramatic moment as they work together to save her family.
In "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien, Jonathan Frisby dies in an accident while attempting to move the family's home to protect them from a plow. He is killed by a farmer's tractor, leaving his wife, Mrs. Frisby, to care for their children and face the challenges of their life in the field. His sacrifice sets the stage for the story’s exploration of bravery and survival.