Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Engrossing!

The characters seemed to come to life as I kept turning pages. Following the development of the story through the eyes of John Moore made it more approachable. Despite the murders description's crudeness, which proved to be a little disturbing at times, every chapter entices the reader into knowing what's happening next. I particularly liked the fact that the main characters weren't superheroes in any way. They were pictured as common people with the desire to acquire the knowledge that will lead them into catching the criminal. People with interesting abilities and flaws. The answers to the reader's many questions are revealed in the right way: not too slow nor too fast, everything unveils at just the right time. I also enjoyed the author's narrative style. He was careful not to get lost in endless descriptions, instead he gives enough information to provide each scenario with the right atmosphere. All in all, an enjoyable read.