Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Grave Mistake

I have read most of Martha Grimes' books. The End of the Pier remains one of my all-time favorites. This offering, however, is pathetic. After the cliff-hanging end of the last Richard Jury book we find Jury alive and surprisingly well after being shot three times. He is, in fact, well enough to go to bed with one of the suspects, his injuries being no impediment to sexual prowess. There is kidnapping, horse-napping, rape, murder; comic relief provided by a hermit; the usual gang hanging out at the Jack and Hammer; and a bizarre connection to Premarin, the estrogen replacement pharmaceutical produced from pregnant mare's urine. The book does not hang together, is not well plotted, is difficult to follow, and is not worthy of Mz.Grimes usual workmanship.