Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent!

I loved this book! It was playful and serious at the same time (the hero has to stop the destruction of the universe as he knows it -- and has as much trouble believing that as you do). The hero will remind older readers of a slightly doofy version Kimball Kinnison (right down to the breeding program that produced him) but with a much better sense of humor. As he develops throughout this multiphase book, you like him more and more for his resourceful handling of what Palmer throws at him. I'm only sorry that Palmer has disappeared! What a loss to the SF world. His other novel, Emergence, was a real page turner as well. Please, Mr. Palmer, come out of retirement and finish this story!