Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing after all the strong reviews

I did not feel as strong a sense that this author knew his period as I have from such recent historical novels as, say, The Dress Lodger. But what really frustrates me in a mystery is when the detective does not follow obvious trails or makes nothing of pretty strong hints. For example, Weaver had the manuscript of his father's book in his possession and knew it probably related to his death. Did he read it? No, it made him sleepy! Then someone stole it from him. Why not make it more difficult for him to get the manuscript in the first place than have him ignore it? There were many incidents like this throughout the book. If there is anything that makes me impatient, it is a stupid detective.