The Fourth Side of Triangle

Sheila, exotic young international leader of haute couture,is found murdered in her Park Avenue penthouse. Two floors down, the distinguished middle-aged millionaire—Ashton McKell—is hauled off to jail. Next to go, Lutecia, his shy patrician wife. And then—Dane, their handsome, sensitive son. Together, a triangle of murder suspects. Ellery Queen, immobilized, can trick the police into becoming his 'legmen' if he discovers The Fourth Side of the Triangle.

Written by Avram Davidson