Issue: #310
Last valuation update: 2026-10-20
“SECRET OF KRYPTONITE SIX!” Jax-Ur convinces Superman release him from the Phantom Zone in order to save the people of Atlantis from a deadly plague. To do so, they will have to travel back to Krypton before its destruction! In “SUPERGIRL’S RIVAL PARENTS!” Supergirl finally manages to free her parents from the Survival Zone, where they have been trapped since the destruction of Argo City."Secret o...
First appearances: Vorb-Un
Creators: Sheldon Moldoff, George Klein, Curt Swan, Jim Mooney, Ira Schnapp, Leo Dorfman, Mort Weisinger, Jack Schiff
Characters: Superman, Jimmy Olsen, Supergirl, Supergirl, Perry White, General Zod, Jax-Ur, Lori Lemaris, Alura, Zor-El, Comet the Super-Horse, Edna Danvers, Vorb-Un, Mr. Craig, Va-Kox, Mrs. Craig, Thought-Beast, Fred Danvers