This was a wonderful way of wrapping up the series, nicely tying in the characters from the previous books, though it does leave me feeling a little sad. 
 My main complaint is that it went by too quickly. I felt as if I were missing so many details to the many stories hiding just out of sight. I was deftly drawn in, and I wanted to know more. 
 The story is about greed, at the heart of it, but also about love and sacrifice. Essentially, it's a perfect story for any middle grade reader, but that doesn't mean that adults such as myself can't use a reminder every now and then about what is important in life.