Great mystery for boys which falls along the lines of Karen McManus and Holly Jackson. It is told in alternating voices and you are left wondering who the guilty person is up until the end. There are so many people who could possibly committed the murder that you are never really sure until they reveal the killer at the end of the story. I enjoyed the development of the characters and the way they interacted with each other. There was so many things that went on at the private school that gave each of the suspects a reason to commit the murder. You could easily see why they would be a suspect. The story was told very well. I could see kids, boys in particular, that go to private schools really enjoying this book. They would be able to relate to what it is like to the rules and regulations that exist. Many of the rules in the book went to the extreme which is why you could see them being a reason for the kids wanting to "get rid of" the Principal. I felt it was a well done mystery.