Instruct: Classify an Amazon review as either positive or negative.
Query: Great book that has a Matrix quality about it.

City of Ember is one of those books that you here a lot about before you read it. It's one of the fad books that made the rounds of Junior Highs across America in the last 10 years, and for the most part the book does not disappoint.The story is great, and the characters are deep and rich. I wish that the author had spent more time telling me about the main characters(maybe added another 25-50 pages). I loved the maps in the book, and especially how she details the escape.I have only read the first book, but I look forward to reading the sequals.