Warning! SPOILERS for Eternals
The end of Marvel's Eternals may help set up the MCU debut of Namor the Sub-Mariner in Black Panther: Wakanda Forever. The mutant son of a human sea captain and an Atlantean princess, Namor the Sub-Mariner is one of Marvel Comics' oldest characters — first appearing in Marvel Comics #1 back in 1939. Namor's focus on Atlantean affairs means he can shift between being both ally and antagonist to humanity's superheroes. He served alongside Captain America during the
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