Batman, you and Robin are the only ones who can find out what's happened to Superman!
The Super-Mystery of Metropolis (Superman, Batman and Robin / written by Edmond Hamilton) Reprinted in World's Finest Comics #170, World's Finest Comics Archives #1 and Showcase Presents: World's Finest #1.The Mystery of 1,000 Masks (Green Arrow / written by Dave Wood)The Big Dance! (public service message by Jack Schiff)The Frontier Braggart (Tomahawk / written by Dave Wood)
— Description from Comic Vine community (comicvine.gamespot.com).
