Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I can't believe I even bought this book

I have really not liked the "Edge" series at all from Walker, so why in the world I bought this one, I still can't figure out. It was poorly written, boring and difficult to follow. I finally was able to get through this book unlike the last one, but I am beginning to wonder if Walker has ever been to Houston. At least he got the weather more correct this time, but I work downtown and have been looking for buildings one could jump from one to the other. Most buildings here take up a city block and jumping across five or six lanes of roadway is just too unbelievable. But poetic license aside, I wonder if Walker's students are writing this series because they don't seem to be written by the same person who is writing the "Instinct" series.