THE AMAZING MAURICE AND HIS EDUCATED RODENTS, by Terry Pratchett
Magic abounds in all of Pratchett's books, and this one is no exception. The rats have scavenged the trash pile of Unseen University, where magicians create new magic. They throw rejects out and it transferred to the rats. And Maurice. Now they read and they speak. Maurice, ever in search of easy money, dreams up the perfect scam. And then they get to Bad Blintz and meet Malicia Grim...and two of the worst rat-catchers ever born. It's a fun-filled 4.
For more on the hugely prolific Pratchett, go to www.terrypratchettbooks.com