Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What was Cook thinking?

Dr. Robin Cook may be a good author but after reading "Mutation" you would never image that to be true. The far-fetched and unrealistic plot made it hard for the reader to believe that such events could take place. Not to mention the characters are ridiculous. Vj, and eleven year old boy, accomplishes more than most highly educated adults could ever image to be possible. The plot and characters display issues but then there is the problem with the extreme amount of detail. Highway exits, street names, and the weather are all examples of this detail that is just thrown in adding no real importance to the novel. All of this tied in with the heavy foreshadowing of the ending just leaves one sad story. Cook may written some decent novels in his time but "Mutation" is defiantly not one of them....What was he thinking???