Issue: #493
Last valuation update: 2026-10-22
Secret origin of the Challengers of the Unknown Part 1 - When Destiny Calls!Lana Lang and the Legion of Super-Heroes (Adventure Comics #282 - Lana Lang and the Legion of Super-Heroes!)Is This My Foe?A Nightmare Called Gorgonus (Adventure Comics #219)The Three Super-Girl Friends (Action Comics #276 - The War Between Supergirl and The Supermen Emergency Squad! / Supergirl's Three Super Girl-Friends!...
Creators: Jim Aparo, Dick Giordano, Julius Schwartz, George Papp, Gardner Fox, Jerry Siegel, George Tuska, Keith Giffen, Bob Rozakis, Len Wein, Romeo Tanghal, Paul Levitz, Murphy Anderson, Milt Snapinn, Pete Costanza, Joe Letterese, Carl Gafford, Otto Binder, Jim Mooney, Andy Mushynsky
Characters: Superman, Zatanna, Ace Morgan, Aquaman, Prof Haley, Red Ryan, Rocky Davis, Spectre, Billy Batson, Supergirl, Supergirl, Jim Corrigan, Thom Kallor, Tula, Bouncing Boy, Brainiac 5, Chameleon Boy, Cosmic Boy, Krypto, Lightning Lad