Instruct: Classify the given Amazon review as either positive or negative.
Query: I would give it 6 stars if I could

Barbara Vine/Ruth Rendell is the best writer in her genre. She is streets ahead of anyone else in the field. The plot has been dealt with by several reviewers (on Amazon's UK site) so will not repeat it here. What is so marvellous about Vine's writing is her building up of the story to a great (and usually unexpected climax). True, the plot was fairly obvious but it was the way she approached the story that made it so interesting. I also have the problem of wanting to gallop ahead and yet rationing myself so that I don't finish the book too quickly. I have read all her books and most of them twice. Her ability to deal with and develop the characters in her books is just amazing. Each and every one of the Cosway children as well as Mrs. Cosway and the outside characters were made so human and so believable. This book deserves 6 stars