The Madman Theory Author:Ellery Queen An Ellery Queen mystery actually written by SF author Jack Vance. — At first it seemed as though only THE MADMAN THEORY could explain the brutal slaying which lay in wait for the friendly group of back-packing hikers. — But Inspector Omar Collin, lean, gloomy-eyed, black-haired, was a painstaking man. — The more he pursued it, the less he believed ... more »in THE MADMAN THEORY.« less
This mystery novel by Ellery Queen does feature the fictional detective Ellery Queen. It is a police procedural in which Inspector Omar Collins unravels a seemingly random murder of a camper.