Timothy Frisby, a field mouse, teams up with the adventurous young rat Racso as together they try to prevent the destruction of a secret community of rats that can read and write.

I vaguely remember the first and last books in this trilogy, but for whatever reason this was the one that I liked the best. I was really into the rat society, complete with rat university, rat anarchoterrorists, rat inventors, teenage rebel rats, etc. It's been a very long time since the last time I read it, though. ( )

Timothy Frisby is off to Thorn Valley for his third year of school with the rats, but this time, Jeremy the crow is unable to fly him there, so he sets off on foot. He meets a stranger, a city rat called Racso, and they journey together; when Timothy is nearly carried away by an owl, Racso cares for him until the rats of Nimh find them both. But upon their safe arrival at Thorn Valley, they learn of a threat to the community: the humans are planning to dam up the river and flood the valley to make a lake. The rats cook up a plan to sabotage the dam, and for once, they might be on the same side as the farmers.

A worthy sequel to Mrs. Frisby and the Rats of NIMH. ( )

And it's sequel by the original author's daughter. ( )

Racso and the Rats of NIMH is a continuation/companion novel to Mrs. Frisby and the Rats of NIMH. Overall I think it maintains the same general feel of the original book (it helps that the author is Robert C. O'Brien's daughter), and it works well as a continuation. The total amount of time that has passed between the first and this one is a bit tricky to determine, but I don't know that it really matters all that much. ( )