Tales of Suspense #87

This March 1967 Marvel double-header pits Iron Man against a green-robed, masked villain operating massive underground machinery, with the Armored Avenger blasting upward in a burst of energy while yellow-suited henchmen scramble nearby — all under the gripping banner "Crisis at the Earth's Core!" The cover, penciled by Gene Colan and inked by Frank Giacoia, crackles with that distinctive late-Silver Age energy, balancing industrial menace with Iron Man's gleaming gold-and-red figure at its dramatic center. Fans of both Iron Man and Captain America (featured in the title's trademark split format, with both heroes spotlighted in the corner box) will find this an appealing snapshot of Marvel storytelling at its most imaginative.