Instruct: Classify the given Amazon review as either positive or negative.
Query: So Disappointing

The first part of the book was very interesting. The premise was intriguing, and I wanted to know what had happened to the heroine to put her in such a predicament. However, the second half of the book was an incredible let-down. The plot spun wildly out of control, I completely lost touch with the hero, and I thought the heroine completely unbelieveable - particularly her turnaround regarding the hero at the very end of the book. I'm more than willing to suspend my disbelief if the story is good, but I want it to make sense within the parameters of the world you have to buy into for that to happen. The characters completely lost me, the love-hate thing with the hero's father was completely incomprehensible, as were the hero's motivations regarding his actions toward the heroine. A definite wall-banger.