A police banquet is hardly the most likely setting for murder -- especially with some of the keenest homicide hounds in the country unmuzzled around the table. But when Private Detective Ed Scanlon cuts loose with his special after-dinner speech, somebody decides to feed him a bullet in the heart. rn rn rn Simon Crole, an artist with clues and corpses, is also a connoisseur of food. And he first makes sure his digestion is well under way before he lumbers into action with logic that covers ground like a jack rabbit. Crole detects as well as he eats, and you'll enjoy the taste of your pages right up to the surprise dessert of who-done-it!