The Savage Sword of Conan #15

In "The Devil in Iron," Conan finds himself ensnared in a deadly trap on the remote island of Xapur, where rival warlords Jehungir and Ghaznavi scheme to use the mysterious Octavia as bait. Unbeknownst to them, the island's ancient curse has awakened a long-forgotten warrior—bound by iron and vengeance—whose presence shifts the balance of power in ways no one could foresee. Written by Roy Thomas and brought to life with dynamic art by John Buscema and inks by Alfredo Alcala, this 1976 Marvel classic features a cover by Boris Vallejo that captures the grim, mythic tone of the tale.