A mystery story, given an ancient, oriental background by the style and a sly humor that crops out in most of its pages. Unfortunately, this very seeking for effect in style has virtually spoiled a story, making it hard going, particularly for anyone accustomed to the fast pace of the average mystery, and something more in the balance than the lost Mandarin's queue. An amusing story, nonetheless, and worth the effort involved. Try the Circus of Dr. Lao market, as well as mystery fans who are sated with the obvious and willing to work for their results. Mystery caviar.