Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I think I underwent a near-death experience reading this book.

I really tried to like this book, but it had to be one of the most depressing books I have ever read. It went on forever, and most of the novel consisted of people endlessly running a maze of corridors in a hospital. Except for Kit and the little dying girl, most of the characters were paper thin. I really thought near the end of the book that the endless hospital passages were the near-death experience. The message was bleak, and I was totally depressed by the end of the novel. I've not read anything else by this author, so my experience might be a quirk. Also, this book might appeal to someone else, but I had a terrible time with it and wished I had never read it. With all apologies to the author.