Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Kiernan's Best Yet

I was very impressed with Caitlin Kiernan's second novel. It is a worthy successor to Silk, though it's a much more fast-paced book. Threshold reads a little like an M. Night Shamalyan movie written by H. P. Lovecraft, it's that powerful and that weird. I do not hesitate to recommend this as one of the finest works of supernatural horror in a very long time.