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

It is amazing how rich and full the first three books were and how amazing that this book was full of nothing. I was very happy to finish this last book it was like a burden was lifted off of me. I'm sorry to say that I found this book was a waste of my time. Knowing me I will give the next book a try. I'm hoping that this was a dud in a great series.