Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A fascinating and thought provoking diversion

Generously immersed in historical fact, I found myself forgetting at times where fact ends and the "what if" takes over. Gibboney works this concept superbly and his excellent knowledge of civil war history rewards him well as he deftly paves a side road to historical reality. I anxiously await more literary magic from this gifted writer.