Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gregor and the Marks of Secret

I completely and totally recommend this book. I read it in about one day and started crying when I was done, because it was so good. I will definitely be ready for the 5th book, waiting with so many questions about what happens next. I suggest, if you are thinking about reading the 4th book, that you wait for the 5th book to come out so you can go right into it. Unlike me who now has to wait untill May to continue the series. Please read and enjoy the book.