"Dave doesn't have high hopes for himself on his first day at a new school in a new town called Muddle. But he has no idea just how bad things are going to be. Getting knocked into a mud puddle by a trio of bullies. Having his secret crush revealed to the entire math class. And then that snot bubble ... No, Dave is totally not killing it at Muddle School. He may just have to resign himself to dorkdom, content with drawing in his sketchbook to deal with life. But then Dave begins working on a time machine for the science fair and he gets a brilliant idea. What if he goes back in time to that first day of school?" -- Publisher.