It's a wild ride in the exciting sequel to Mousenet (Hyperion, 2011) as two human friends and a nation of pint-sized heroes hit the road! Life is good for the four humans in Cleveland who know that mice have evolved into possibly the smartest species on earth. 11-year-old Megan and her cousin Joey have great summer jobs at the mouse-powered factory that makes Thumbtops - the tiny computers mice use to spread the word about climate change. But suddenly, the Big Cheese, leader of the Mouse Nation, needs their help. Will the humans save the Mouse Nation?