Instruct: Classify the given review into positive or negative sentiment.
Query: Excellent story for any age

I found this book in my local library and first read it at the age of 19. I loved it, and it remains one of the best survival stories I've ever read. Allan's loneliness and (at first) hopelessness draws the reader in, and we marvel at Allan's ability to survive in such a harsh, unforgiving place.