Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Conclusion to the Trilogy!

However, since this is the first book in the series, it can be fairly said that there are some problems here.The biggest one is that Gentle never quite explains how things got to be the way that they are in this world that is allegedly "a past that could have been". For contrast, consider the gradual unveilling of the history of the world in "Ash: The Secret History". There is nothing of the sort going on in this book.Furthermore, if I hadn't already read some of Frances Yates' studies of the influence of magical philosophy on history and science, I'd have been completely lost. As it stands, I was only almost completely lost. I really don't think one should have to have an extensive understanding of the Hermetica in order to understand what is going on in a novel.