Once he stops playing barfly and gets down to detecting, Stone is as disarming as ever, even if the plotting of "Dirty Work" is relatively subdued. Stone once cut a hedonistic swath through London, Hollywood and Palm Beach; this time he doesn't get far from Elaine's. This book involves an international hit woman and is set mostly in New York. Stone remains affable if not incendiary company. And he is the kind of detective who has a favorite brand of Champagne.