Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The series stays strong

After reading (er, after my kids read) the first two Harry Potter books, we all anxiously waited for the third -- could it be as good as the others?I won't try to say which is better; they're all good, having different aspects to them. "Prisoner of Azkaban" has more suspense at the end -- my daughter's eyes got wider with each surprising revelation and twist, and it was impossible to put the book down during the last chapters.Highly recommended, and we're anxiously waiting for Harry Potter #4!