Spider-Woman #18

That cover by Bob Budiansky and Tom Palmer makes an immediate impression: Spider-Woman in her red-and-yellow costume braces herself as a massive, grotesquely melting creature looms over her, its dripping, corrosive form already spattering her suit. The story title "Sins of the Flesh!" fits the visceral, unsettling imagery perfectly, promising a distinctly creepy threat for 1979 Marvel horror-adventure fans. With Gruenwald scripting and Infantino on interior art, this issue blends suspense and the macabre in a way that holds up as a genuinely gripping chapter of Spider-Woman's solo run.