Reviewed by Joseph A. (age 9)
I liked the book because the book has a happy ending. I thought it was a little bit confusing because the triangle turned into a different shape. My favorite part of the book was when the triangle turned into a circle because he was happy. This book reminds me of The Missing Piece by the same author because it has kind of the same title and the same character, which is the Missing Piece. I wonder how the missing piece grows.
I think some people would like the book. I think eight to twelfth graders would like the book because I think it has a lesson. The lesson is don't be sad if you don't have anyone because some things could change.