Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Disappointing and Frustrating

I'm a big fan of the Dark Series (Christine Feehan) and I was very disappointed. The story was horrible; I felt so let down!!! I was totally looking forward to this book and instead of feeling like wow she did it again I felt like oh my god who in gods name wrote this story because it could not have been Christine. This story should have been more developed than it was; when I turned the page and saw that the story was finished, I just said oh no she did not just do this!!!