Published May 1963 by DC.
Cover art by Kurt Schaffenberger. The Mortal Superman! [chapter 1] starring Rocks Haney, script by Leo Dorfman, art by Al Plastino; Superman loses his powers and is vulnerable to his enemies. The Cage of Doom! [chapter 2]. The Super-Cop of Metropolis! starring Superman, Krypto (guest appearance), Jimmy Olsen, and Perry White, script by Jerry Siegel, pencils by Curt Swan, inks by George Klein. 32 pgs. $0.12. Cover price $0.12.