Mrs. Frisby and the rats of NIMH

I'm reading a book called Mrs. Frisby and the Rats of NIMH. Mrs. Frisby is a mother, and her husband died (Jonathan Frisby). One of her sons (Timothy) is very sick, he has pnemonia. She gets medicine from Mr. Ages. One day, she saw a crow that was attached to a string witch was attached to a fence. Than, the farmers cat named Dragon came along and was walking toward Mrs. Frisby. She saves the crow just in time than just barely made it by jumping on the crows back. The crows name was Jeremy. Jeremy takes her to her home. Than, she sees a bunch of rats taking what looked like a string into a thorny bush. The next time she saw Jeremy she asked him about the rats. Than, she heard Mr. Fizgibbon and his 2 sons talking. They were talking about plowing in less than a week. She talked to Jeremy and he said to go to the tallest tree and there will be an old owl that would be able to help you. She had to go at a certain time because he was gone hunting or at home sleeping. She had to go right when he woke up. When she was talking to him he couldn't answer. Than, he said,"wait, what's your name?"
"Mrs. Frisby."
"Do you know Jonathan Frisby?"
"Yes."
"Well, there may be a way, go to the rats that you saw the other day. Ask to talk to Nicodemous. He should be able to help."
So she went to the bush. She couldn't find an entrance because it was so thorny. Than, she saw a part where there was no thorns, and a little entrance hole. She walked down and saw a guard (Brutus) in front of a entrance she asked for Nicodemous and he said no. When she was walking out, she saw someone coming an it was Mr. Ages, and he had a cast on his leg. He said that this was Mrs. Frisby to the guard and he let her and Mr. Ages in. Than, they made a plan to move her house to a safe spot. They put a powder in Dragon's bowl that made him fall asleep. They successfully get her house moved. Than, exterminators come and try and kill the rats. One almost dies but didn't end out dieing (Brutus). Although, some do die.