Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Too many flashbacks

I agree with Morris. In all of his recent books, Johnstone seems to be running out of material and filling out his stories with excessive retelling of what has gone on in previous books in a series. This seems to apply to all of his past series and looks like 30% plus is flashbacks (retelling segments of previous books) where they are obviously used as page fillers.