Just Harriet

There are a few things you should know about Harriet Wermer:

• She just finished third grade.
• She has a perfect cat named Matzo Ball
• She is not excited to be spending her whole summer vacation away from  home.

When Harriet arrives on Marble Island, however, she discovers that it's full of surprises, and even a mystery. One that seems to involve her Dad, back when he was a young boy living on Marble Island. One that Harriet is absolutely going to solve.