Instruct: Classify the given review into positive or negative sentiment.
Query: A "true" Tale of Fiction

I looked forward to reading this book, but after finishing it, I felt duped. I can't remember the last time that I read a book of non-fiction that I so completely disbelieved. I believe that Mr. Fletcher climbed an Alaskan mountain and met a bear, but his Friday the Thirteenth style description of being stalked by a grizzly can't be true.In addition, his cheerful description of toppling a rock spire just for the fun of it indicated a rather cavalier attitude towards the beautiful environment he professes to love