Mrs. Frisby and the Rats of NIMH by Robert C. O'Brien

 "The real point is this: We don't know where to go because we don't know what we are. Do you want to go back to living in a sewer pipe? And eating other people's garbage? Because that's what rats do. But the fact is we aren't rats any more. We're something Dr. Schultz has made. Something new. Dr. Schultz says our intelligence has increased more than one thousand per cent. I suspect he's underestimated; I think we're probably as intelligent as he is---maybe more. We can read, and with a little practice, we'll be able to write, too. I mean to do both. I think we can learn to do anything we want. But where do we do it? Where does a group of civilized rats fit in?"

           -Nicodemus, from the novel

This book is likely recommended for upper elementary students so why would this 70-something woman be reading it? I had discovered it as a 5th grade teacher, and it was a favorite of mine: a delightful fantasy with loveable animal characters. I needed something light and fun and Mrs. Frisby.. filled the bill. A rating of 5.

Mrs. Frisby is a mouse widow and mother of four, one of whom is very ill. She knows a wise mouse, Mr. Ages, who has cures to offer so she goes to seek his help. He gives her medicine for son Timothy but warns he will not completely recover for weeks. Further complicating matters the Frisbys will have to move soon because their home is in a field that will be plowed in early spring. She will need serious help to move the family. 

After Mrs. Frisby rescues Jeremy the crow, he suggests the owl may have a solution to her problem and he flies her there. The owl is familiar with her name, having known of her late husband, Jonathan. The owl simply says, "You must go to the rats."

There is a group of rats who are seen going to and from a huge rosebush by the barn on the property of the Fitzgibbons, where the Frisbys also live. Mrs. F summons her courage and goes there. She eventually meets Nicodemus who tells her the story of the rats' escape from NIMH, National Institute for Mental Health, where they were kept in a lab and given injections for intelligence, strength and longevity. She also finds out how the rats were familiar with her husband.

You will have to discover the details for yourself.