Superman's Perfect Crime! comes in two parts:
1. Superman's Perfect Crime!
2. Socrates Seeks a Secret(starring Superman, Nova, Batman and Robin, Alfred, Mr. Socrates : an imaginary story continued from World's Finest #178 / written by Cary Bates : reprinted in: DC Special Series #23)Superman, now Nova, was captured by Mr. Socrates, who uses an electronic device to control Nova. Will Batman fall for the trap Nova has waiting for him? The Batmen of All Nations! (Editors' Round Table choice : starring Batman, Robin, Commissioner Gordon, Knight and the Squire, the Gaucho, the Ranger, Musketeer, and the Legionary / written by Edmond Hamilton : reprinted from: Detective Comics #215)