"Angus Cairns is a brownie, a magical creature with a fastidious nature. Alex Carhart is the messiest eleven-year-old in the United States of America. Together, this unlikely pair embarks on an unforgettable adventure"--

Little Oink is a neat little pig, but his parents will not allow him to play with his friends until he is messy, as pigs should be.

At first Henry's very neat cousin doesn't like the cookies from under his bed or Mudge's slobbery kisses, but when they all play frisbee, she begins to enjoy her visit.