Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Kellerman Novel Yet

This book was terrible, though some of Kellermans early Alex Delaware novels were actually quite good (When the Bough Breaks). Billy Straight is flawed almost from the beginning, the plot or mystery is a no brainer, the culprit is obviously one of two characters, and since you know that there is going to be a "twist" at the end, it is of course not the person that Kellerman tries to lead you to believe it is. In his more recent books Kellerman seems to have become some kind of an avenging angel, all of the "bad guys" in his books come to terrible ends, this time again, that are all too convenient. Plot aside, Kellerman indulges in every stereotype available, from the racist Russian to the kindly jewish grandfather. Petra, the central character is completely one dimensional. I wish Kellerman would not have tried to put himself in the place of a woman. Almost always when male writers try to do this the result is what you get here, completely unnatural.