Mice are the second most intelligent species on the planet; they got smarter after learning about computers. But computers are too big for them; it takes a lot of mice to operate a computer. The solution: the Thumbtop, the world’s tiniest computer, perfect for mice. And the mice want one in every mousehole. The only problem is convincing the humans to help the mice. The Thumbtop was invented by Fred and his niece Megan. Megan just got back from spending two years on an island studying sheep with her mom. Then mom heads to Australia to study wombats and Megan has to leave Fred and move to Oregon to live with her dad and stepmom. Megan has a hard time fitting in, then the mice make contact and things getting even stranger. The mice convince Megan of their plight and get her to help them with the Thumbtops. Along the way we meet her cousin Joey who thinks she is a spy and a talking mouse named Trey.
This book is aimed at ages 8-12 but at almost 400 pages it is a long book for an 8-year-old. I think the story could have been cut down and still gotten the message out. I liked Megan and I liked the mice, but I wasn’t as impressed by the rest of the characters. I thought everyone was pretty one note and not very developed. I never got Joey and his obsession with Megan being a spy. He actually steals the Thumbtop from her at one point and he searches her room. This just didn’t seem like normal behavior for an 11-year-old. I also thought all the adults were pretty much non-characters. I wish this was a better book because I think it has a cute premise and some potential. Unfortunately, it just doesn’t work for me.