Issue: #360
Last valuation update: 2026-10-20
The Unknown Supergirl (Supergirl) (Reprinted from Action Comics #278) -- 2. Supergirl's Secret Enemy (Supergirl) (Reprinted from Action Comics #279) -- 3. Trapped in Kandor (Supergirl) (Reprinted from Action Comics #280) -- 4. Milestones in Supergirl's Life (Supergirl) -- 5. The Three Red K Perils (Supergirl) Reprinted from Action Comics #283) -- 6. The Super-Mermaid (Supergirl) Reprinted from Act...
First appearances: Infinite Monster
Creators: Jerry Siegel, George Klein, Curt Swan, Jim Mooney, Mort Weisinger
Characters: Superman, Mr. Mxyzptlk, John F. Kennedy, Supergirl, Supergirl, Lex Luthor, Brainiac 5, Cosmic Boy, Krypto, Lightning Lad, Perry White, Brainiac, Saturn Girl, Lori Lemaris, Alura, Zor-El, Lenora Lemaris, Lyndon Johnson, Koko, Dick Malverne