Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Adventure Spoiled

I found the book an extremely difficult read. The writting style varies throughtout while the story line chronologically jumps back and forth. There are also times where scenes are depicted with unnecessarily crudity. As someone who throughly enjoyed "From Sea to Shinning Sea" and "Undaunted Courage", and who was ready for another pleasurable dose of Lewis and Clark, the book left me bitterly disappointed.