Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the most disturbing books i've ever read, fantasitc.

Everything about this book is disturbing. The cover, all the fantastic artwork inside, and of course, the story. Two brothers, siamese twins, (plus a third unconcious head) are thrown out of their environment, and into the public eye in the form of rock stars. The book follows them from their island home, and then on their world tour. When suddenly the third head awakens.