This is a very unusual novel mostly because of the narrator's autism. Simple to read, the novel has an interesting rhythm to it as the reader becomes more familiar with Christopher's disability. While I initially thought it would become repetitive, the story takes some turns to make it a consistently enjoyable reading experience.
Christopher begins to write the book to solve the mystery of the murder of Wellington, a neighbor's dog, like his hero Sherlock Holmes. Along the way, we learn about his family situation, his view of the world, his idiosyncrasies, and his school life. He's not exactly an unreliable narrator, but the author does an excellent job of imagining the problems involved when the storyteller has autism and the story is consistent with this perspective.
While not a perfect book, I would recommend this highly, especially to people who want a fresh and different reading experience. It's not at all preachy, and it deals with a little understood disability with honesty; this reader came away from the book with a new understanding of the difficulties of dealing with autism. It is well worth your time to pick this one up.