Tales to Astonish #21

That enormous, glowing face with its eerie ringed eyes peering out from the jungle undergrowth makes for one of the most unsettling covers Marvel put out in 1961 — Trull the Inhuman is a genuinely imposing presence, dwarfing the three terrified figures scrambling away in the foreground. Jack Kirby and Dick Ayers deliver a cover that balances primal dread with the era's irresistible monster-magazine energy, promising something lurking in the shadows far beyond ordinary human reckoning. Stan Lee and Larry Lieber's story, brought to life inside by Don Heck, tackles the jungle's "most fantastic menace the world has ever known" — and at a dime, Tales to Astonish #21 makes that promise hard to resist.