Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It's the ending

I actually listened to the audio of this book, which is well done, by the way. I enjoy reading fiction about otherworldly creatures, and was deeply enveloped by this book until......the end. What a rotten ending for such a well put together story. I was so disappointed that I refuse to suggest this book to anyone. Which is unfortunate because I work PT in a bookstore!!