Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Readers Rescued

One of the many remarkable things about Drury's book is that is combines a ton of intriguing information with being a darn good read. What a story, and what info -- tidbits like an avalanche can travel at speeds of up to 200 mph on level ground! In this gripping tale readers will be rescued from the typical dull travel/adventure writing and put in the middle of a literal cliffhanger.