Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An third-rate disaster from a master of mystery

I purchased this book at the airport, thinking that I was going to be reading another first-rate mystery by Ms. Cornwell. I diligently pursued the work, hoping that it would get better. After a few hours, I realized that it was one of the worst books I had read in years. Her personal life seems to be affecting her ability to spin a good story