Bestseller Margolin’s stylish if shallow fourth suspense novel featuring Washington, D.C., PI Dana Cutler (after 2012’s Capitol Murder) pits her against a particularly slimy and dangerous villain. Dispatched by client Margot Laurent to the Pacific Northwest in search of a golden scepter that once belonged to an Ottoman sultan, Cutler finds a connection between the valuable relic and Horace Blair, “the multimillionaire head of a conglomerate with tentacles in shipping, scrap metal, real estate, and other lucrative enterprises.” Back in D.C., defense lawyer Charles Benedict—magician, rapist, blackmailer, killer—is trying to frame Blair for the murder of his wife, Virginia prosecutor Carrie Blair, who disappeared shortly before termination of her prenup would have made her very rich. Cutler returns home in time to witness Blair’s bail hearing and discover a surprising link between Margot and Carrie. Cutler meets Benedict’s clever machinations with equally clever countermeasures, but readers should be prepared for superficial characterizations. Agents: Jean Naggar and Jennifer Weltz, Jean V. Naggar Literary Agency. (Apr.)