Cindy Otte Whitaker 
The Adventures of Beasleyville [EPUB ebook] 

The Underground World of Beasleyville takes you through the life and adventures of a baby mouse, captured and released into the desert by people who live above ground called Topsiders. He finds adventure and friendship in an underground family of gophers as they collect things they need to run their town, that Topsiders leave out in their yard, and eventually leads him back to his own family.