Marvel will release a new comic tie-in titled "Black Panther/Namor: Doomed" in September 2026 [1].

The series expands the narrative of the larger Avengers: Armageddon event. By centering on the alliance between T'Challa and Namor, the story explores the intersection of two of Marvel's most powerful sovereign nations during a global crisis.

In the upcoming storyline, Black Panther and Namor must travel to Hell to confront a demonic army led by Doctor Doom [1]. The mission is a direct response to attacks occurring on Earth, specifically targeting the nations of Wakanda and Atlantis [2]. The heroes are forced into an uneasy partnership to defend their respective homelands from the supernatural invasion [2].

This tie-in serves as a critical component of the Avengers: Armageddon plot, providing a deeper look at the motivations and strategies of Victor von Doom [1]. The narrative focuses on the high stakes of the conflict, as the demonic forces threaten to destabilize the balance of power between the surface world, and the deep ocean [3].

While the primary action takes place within the demonic realm, the fallout of the battle is expected to resonate across the broader Marvel Universe [2]. The release of issue No. 1 is scheduled for September 2026 [1].

Marvel has not yet released specific details regarding the creative team behind the writing and art for this specific tie-in, though it remains a central pillar of the company's 2026 publishing slate [1].

Black Panther and Namor travel to Hell to battle Doctor Doom’s demonic army.

This release demonstrates Marvel's strategy of using high-stakes 'event' comics to drive sales across multiple titles. By pairing Black Panther and Namor—characters with a historically volatile relationship—against a powerhouse villain like Doctor Doom, Marvel is leveraging character conflict to increase the emotional weight of the Avengers: Armageddon storyline.