HUSBAND SHAKEN OFF, I went in search of the wife. And I knew something was wrong the moment I stepped into the garden. The trouble was, I couldn’t for the life of me figure out what. It certainly wasn’t the decor, which had transformed the space from wooded lawn into fairy banquet hall. There were silk streamers and cut flowers and pockets of ladies clustered around waiters serving hors d’oeuvres. Dead in the center of the bustle was Mrs. Smythewhite. Classy and collected as only a cold-blooded murderer could be hours after the death of her third victim. “Grace!” She met my eyes from the far side of a long, cloth-covered table. More forks, spoons, and knives than I could imagine being used for one meal were arranged around sparkling china. “You’re just in time. Come sit by me.” The oth

