Issue: #439
Last valuation update: 2026-10-20
Cover by Nick Cardy."Too Big to Live!" (Superman) written by Cary Bates, penciled by Curt Swan and inked by Bob Oksner."Danger in Two Dimensions!" (Atom) written by Martin Pasko, penciled by Dick Dillin and inked by Dick Giordano and Tex Blaisdell.
First appearances: Olivia Strong, Carnox
Creators: Julius Schwartz, Cary Bates, Curt Swan, Bob Oksner, Nick Cardy, Tex Blaisdell, Martin Pasko, E. Nelson Bridwell, Dick Dillin
Characters: Superman, Ray Palmer, Jean Loring, Olivia Strong, Carnox, Captain Strong