This was my library helpers Book of the Month selection for January. I was hesitant because I usually like a book with a little more substance. But I was pleasantly surprised. Now, I did read it in pretty much one setting and in just a few hours. (Friday's are a slow library day! Ha!) I can honestly recommend it for elementary level girls. It's funny and entertaining. Plus, if they like it there are two more books so far in this series.
Here is a book trailer for it: