Instruct: Classify the given review as either positive or negative.
Query: Where did that come from???

I found the plot twists to be pretty darned forced. The characters would react to sudden revelations as if they were extraordinary conclusions to previous circumstances. The only problem was that the previous circumstances were non-existant, and only "explained" at the same time to support the new bend in the story. Hardly exciting. I found myself, as the heroes were in danger, saying to myself, "good, kill them off...it might make this book a little more interesting." I do give credit to the research on Chinese herbal medicine and Beijing...interesting learning assuming it was accurate.