Ages 7 to 9

It happened quite suddenly, The Change that gave all animals the power to speak, read, and understand human language.

For Cheddar Plainmouse and the rest of his colony inside the Crittertown Post Office, The Change opens up an amazing new world of information. For the first time, Cheddar and his friends Grayson and Nilla venture beyond the cozy dirt floors of the post office basement to explore the big world-a world filled with zooming cars, pouncing cats, and lots of humans! When the mice learn that the post office is scheduled to be shut down, it's up to Cheddar, Grayson, and Nilla to find a new home for the colony. It's a race against time, but these clever mice just may come up with a plan to save the post office and unite all of their animal friends, too.