This is a mildly entertaining mystery, but I cannot rate it very high due to its lack of originality. The whole thing reads like Janet Evanovich fan fiction. The incompetent, cake-scoffing novice detective, the parents, the darkly powerful and mysterious mentor, the delinquent granny - every element of the Stephanie Plum novels is present - except the hamster. Sadly, this author lacks Evanovich's flair, and the whole thing falls rather flat.
Innocent in Las Vegas is available free on both AMAZON and SMASHWORDS. If you're into humourous crime/romance, you may also enjoy my own Operation Tomcat.