Issue: #300
Last valuation update: 2025-11-19
Feature: "The Super-Planet of Clark Kent and Lana Lang!" - Lana and Clark visit Professor Potter, who accidentally send the two of them to a strange planet.2nd Feature: (The first Adventure issue to feature a story of the Legion of Super Heroes). Saturn Girl, Cosmic Boy, Lightning Lad and Sun Boy are having trouble with their powers. They request Superboy's help. He joins them from the past where...
First appearances: Ulthro
Creators: George Papp, Jerry Siegel, George Klein, Curt Swan, Joe Letterese, John Forte, Ira Schnapp, Henry Boltinoff, Al Plastino, Mort Weisinger
Characters: Superman, Lex Luthor, Cosmic Boy, Lightning Lad, Sun Boy, Saturn Girl, Professor Potter, Jerry the Jitterbug, Lana Lang, Ulthro, Mon-El, Varsity Vic, Little Pete