Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A mediocre thriller that follows a set routine.

For first-time readers of Jeffery Deaver, Devil's Teardrop may stand out as a significant thriller. Viewed in the context of his other novels, it quickly becomes tiresome as Mr. Deaver simply follows the same gimmickry he used in most of his other books -- using a character to exit his or her "safe" role in the book to assume the character of the main fiend. As a result, the reader is left only with trying to figure out whom the fiend is and how he or she will play out his or her role. Please, Mr. Deaver, you do a very good job of describing villainry and in this case it's a shame that you leave most of the enormity of this fiend until the very end. Abandon the gimmickry and try a new style, one that will truly entice the reader. For those willing to read other books by this author, I suggest The Bone Collector. It is by far the best Mr. Deaver has written, and depends lesser on his standard trick writing.