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

I was so excited when I found this Dean Koontz book because I am a new found fan of his.As you see from the description of the book, it sounds great - and it was great...until the end.The whole mystery surrounding the plane crash is very interesting once Koontz reveals it...but he waits until the very end to explain the mystery. He doesn't develop the plot twist, and then the book is over leaving a lot of unanswered questions.If you want a great Koontz book, try Odd Thomas.