Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Uncharacteristic Showing

I have been highly impressed by Tess Gerritsen's style of writing in her previous novels: Gravity, The Surgeon, Harvest, The Apprentice. Unfortunately, The Sinner does not carry with it the same level of suspense and excitement that has made her other titles absolute page-turners. In fact, there is nearly no suspense involved for the first 3/4 of the book, as the mystery tying together 3 seemingly unrelated crime scenes is unraveled at a painfully prolonged pace. Yes, this is more of an average quality murder mystery novel than the characteristically excellent medical thriller that has made Gerritsen a multiple-time New York Times bestselling author. Although The Sinner certainly is readable, I would recommend spending your time on one of Gerritsen's more acclaimed titles instead.