Namor, the Sub-Mariner #52

Namor charges forward in his signature green trunks against an icy underwater backdrop, flanked by the looming faces of the Warlord Attuma and Andromeda — an unlikely alliance the cover copy promises will tackle the mystery of the Wreck of the Endurance. A smaller figure with clawed gauntlets scrambles below, while a dark, serpentine creature lurks to the right, and in the background tiny human figures with a dog sled hint at a polar surface world in peril. Geof Isherwood's cover for this July 1994 issue sets the tension perfectly, teasing whatever sinister creature guards the wreck's secrets from anyone bold enough to seek them out.