Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best of the Skylark series!

Hard to come by but well worth the trouble this is the rest of the story of Mark"Blackie"DuQuesne;one of the most interesting characters in scifi.Perhaps more interesting is 'Doc'Smith's treatment of sex & social nudity:I smell Bob Heinlein's influence here.Classic space opera with a twist.Recommended.