Instruct: Classify Amazon reviews into positive or negative sentiment
Query: trainwreck

This was like reading a train wreck. I had to read it to the end because I couldn't believe how bad it was. Someone needs to censure this author so he can never hurt another reader again! Childish dialoge, stupid plot twists and unrealistic investigation techniques. The cops were incompetent, the law references inaccurate. The insights of the hero unbelievable. A little skill from a competent editor would have helped, but not much with this story. I love these kind of books but Under Cover of Darkness seemed to be written by a thirteen year old who didn't know the first thing about children or police investigations or storytelling. I am now hesitant to try any of Grippando's other books, even though I have heard they were good also. Also? Sorry, this one gave legal thrillers a bad name.