Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Alternative opinions - Alternative book.

This book has become something of a 'collectors item' in recent years, albeit, in my opinion, not through its content matter. Holiday cleverly produces anecdotal evidence to support his 'giant slug' or 'paranormal' theories, but, in many instances, research into some of this evidence produces no such incidents to support his case. Holiday was very much part of the 1960's campaign to find any 'hitherto unknown creature' which may lurk in Loch Ness, however, this work seems to lose the plot midway through its pages, and has, in truth, created greater ambiguities in recent years through its lack and inaccurate sources of reference. As a reading volume, not recommended, as an alternative theory, recommended.