Captain Marvel #52

High above a city skyline, Mar-Vell clashes fist-to-fist with the monstrous Phae-Dor — "Lord of Living Energy" — who bellows a surrender demand as dark energy crackles around them atop what appears to be a rooftop structure. Al Milgrom and Terry Austin give the cover a real sense of vertigo, with bystanders visible on a nearby ledge and the dizzying urban grid plunging away far below. Titled "While the World Screams!" and subtitled "Marvel's Spaceborn Superhero," this September 1977 issue looks like a wild ride for fans of high-stakes cosmic action.