Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Supurb unsentimental adventure

I read this before reading Lonesome Dove so I could not compare it at the time. Nevertheless this novel kept me reading breathlessly to the end. Full of raw spirit, realistic descriptions, and free of moral pretensions. Like many of McMurty's work the open endings need to be there. Like life itself, a by the end of the book you know the story just continues - there can be no simple, convenient conclusions. A perfect prequel to Lonesome Dove.