Cover: Curt Swan & George Klein

Action Comics #355

Oct 1967 · DC · 0.12 USD

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In "The Mighty Annihilator!", scientist Karl Keller, long imprisoned in a remote Iron Curtain-like regime, stumbles upon a hidden cache of dangerous Kryptonian chemicals. With their power, he gains incredible abilities and sets his sights on Metropolis, determined to confront Superman for failing to save him—turning the hero’s greatest adversary into a man who might just be beyond even Superman’s reach. Written by Leo Dorfman and illustrated by Wayne Boring, with a striking cover by Curt Swan and George Klein, this 1967 classic delivers a chilling twist on the classic hero-villain dynamic.

Contains 2 stories

The Mighty Annihilator!

12 pp · Superhero

Superman [also appears as Clark Kent]Annihilator [Karl Keller]Perry WhiteSarr-Penn (flashback)Pug Mullins

In "The Mighty Annihilator!", a disillusioned scientist named Karl Keller, imprisoned for years in a remote Iron Curtain–era camp, stumbles upon a hidden cache of volatile Kryptonian chemicals. With newfound powers drawn from the alien substances, he journeys to Metropolis to confront Superman—whom he holds responsible for his suffering—setting off a clash of ideals and might.

The Death of Luthor!

12 pp · Superhero

Supergirl [also appears as Linda Danvers]Lex LuthorDick MalverneFred DanversEdna DanversJerroLori LemarisGarr Rindaz (cameo flashback)