I wouldn’t say that this was an inventive mystery. However, I would say that this was extremely interesting structurally and narratively. Structurally, it was sort of unlike anything I have read before - part standard storytelling, part dramatic script, part informational text, and sometimes something else altogether. Additionally, the narrative perspective switches frequently, using first, second, and third person. The constantly changing story drew me in, but I would understand why some readers would not like this.