John Carter, Warlord of Mars #18

This November 1978 issue puts the spotlight squarely on Tars Tarkas, as the cover tagline "Tars Tarkas Battles Alone!" makes dramatically clear. John Byrne's pencils and Rudy Nebres's inks deliver a striking image of the towering four-armed green Martian locked in brutal combat with a monstrous creature, set against a stark, moon-lit landscape of jagged mountains. A small inset in the upper corner shows John Carter himself on the run, hinting that Marvel's adaptation of Edgar Rice Burroughs's Barsoom is firing on all cylinders in this chapter of "The Master Assassin of Mars.