Squirrel book, I'm not crazy

This was actually kind of difficult to identify...

Originally posted by secretcowz at Squirrel book, I'm not crazy

Hi,

I was hoping someone could PLEASE help me find this book and prove to my roommates that I'm not crazy. When I was in sixth grade (2001-2002) there was this green book in the classroom library that I decided to read one day, the plot was as such:

Girl moves to town, is a lonely loner who has no friends so she watching squirrels all day and figures out that the squirrels seem to have actual strategic movements. Every other chapter is from the squirrels' POV specifically the prince (I think he was a red squirrel) and the general (a flying squirrel?). The prince squirrel is out exploring and gets injured so the girl takes him to heal him. The other squirrels go crazy thinking the humans have kidnapped their prince start attacking by cutting power lines and stuff. The girl eventually releases the prince squirrel before the squirrels do major damage by pretending to understand the squirrels speech and stopping the war.

After this the book disappeared from the classroom and no one else ever read it. Please help me prove I'm not crazy.