Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Exciting premise falls to a poor ending

As always, Kerr has done an incredible amount of research for writing a book. The science and political backgrounds presented here make the story very realistic even for those who find the idea of a Yeti far-fetched. Unlike some of his other books, the technical rarely impedes the flow of this story.However, endings are Kerr's weakness and this book is no exception. We are introduced to two fascinating Yeti characters who are the stars of the story and yet Kerr has them walk out of the story never to be heard from again, and this is significantly before the end of the book.The ending itself is very contrived and convenient and is of a much lower quality than the rest of the book. This seems to be Kerr's unfortunate hallmark, and it is really too bad.In sum, I can't recommend this book despite the promise it holds. No one likes a let down after hundreds of pages.