Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nerve-wracking

I agree with some of the comments that Kay Scarpetta needs to lighten up. She's been a little more depressed and gloomy with each new Cornwell novel, so much so that I'm beginning to blame Lucy who needs to start growing up. I was teary-eyed at the end. I have read all of Pat's novels and they're all good but my favorite and I think the scariest was From Potter's Field. Temple Gault was something else but when Carrie teamed up with him it was even scarier.