Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Virtual Realities live in the details

From the opening scene, Dorothy Heydt pulls you in with the details of her VR medieval worlds as well as her hardworking heroine. The immersive sense of the fantasy VR plays well in opposition to the real world and the threats that cross over.Anyone who enjoys fantasy escapes, whether in the Society for Creative Anachronism, wherein the author is a prominent figure, or in MMORPG games such as Everquest or Dark Age of Camelot, will experience a thrill of recognition reading this book. As a historian, I appreciated that the way Heydt worked in tidbits of medieval (and SCA) customs into her virtual world. Sure, the mystery wears a little thin two-thirds of the way through the book (and the heroine's newfound partnership accelerates unconvincingly) but the magic of the worlds-crossings worked their wonders right through the conclusion.