Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: R. Clark nails it

I could write a lengthy review, but I direct you to the review titled "Monumentally Bad" by R. Clark. It catches everything that was terrible about reading this book.Turtledove is my second-most-read author, but this book highlighted all his worst tendencies in writing and has really put me off his work. As Clark said, even if you've read the rest of this series, this one isn't worth it. Imagine your own ending - it'll be better.Very disappointing.