Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great writing, page-turner plot

The first chapter of this book, describing a ballooning accident, is one of the best openings I've read in modern fiction in a long time. The chapter was published as a short story on its own in the New Yorker several years ago, and it truly stands on its own in terms of originality, suspense, and fine writing. But this novel goes on in true McEwan style to develop the chance meeting of two bystanders to the accident into a creepy, frightening tale of obsession. I won't give away more, but if you haven't read McEwan you're in for a treat.