Instruct: Classify a given review into positive or negative sentiment.
Query: A moving, authentic novel.

The West Virginia Mine Wars were long one of the untold chaptersof American History. Denise Giardina tells the tale unflinchinglyin Storming Heaven. It is an intense, moving novel about a timewhich still makes Appalchians wring their hands and should makeother Americans wonder that this went on in the "land of the free."Characters' voices are interwoven with the narrative in such away that there is no doubt that this is not just historical fictionbut the story of the human struggle.