Aquaman: Underworld: The Deluxe Edition #[nn]

In the shadowed depths of Atlantis, where the Ninth Tride teeters on chaos and Corum Rath enforces his iron rule, a lone protector rises to challenge the crime gangs preying on the innocent—including peaceful mutants. With Arthur presumed dead and the surface world cut off, Vulko schemes in secret while Tula finds solace in Amnesty Bay, mourning a loss that still echoes through the tides.

In "Outsiders," Aquaman and Dolphin race to stay one step ahead of Drift soldiers hunting mutants on Corum Rath’s orders, while Mera pushes her powers to the limit trying to breach the Crown of Thorns surrounding Atlantis. As Murk grills Vulko for secrets and Dolphin guides Arthur to a hidden sanctuary, a new threat emerges when Krush sees a chance to exploit Arthur’s presumed-dead status among the fugitives.

In "Krushed," Arthur and Dolphin are trapped by the ruthless Krush, who aims to exploit Arthur’s royal blood to manipulate Corum Rath. With Rath’s forces closing in, Vulko must forge an unexpected alliance to free Arthur, while Mera turns to Garth at Titans Tower, seeking help to break through the Crown of Thorns and reach Atlantis.

In "Usurper," Arthur and Dolphin flee from Krush, pursued by the relentless Kadaver as they race toward the Atlantean treasury. Meanwhile, Vulko and Ondine navigate the haunted catacombs, facing spectral guardians of Atlantis’s fallen rulers, while Garth and Mera push against the deadly defenses of the Crown of Thorns in a desperate bid to reach the city.

In "Speak Truth to Power," Aquaman grapples with doubt as he tells Dolphin why he can’t reclaim his throne, only to find renewed purpose in her belief that he can still be the hero Atlantis needs. While Vulko and Ondine press on toward the Atlantean treasury in search of a long-lost artifact, Mera and Tempest face relentless resistance from Corum Rath’s Silent School as they fight to breach the barrier surrounding Atlantis.

In "Atlantis Uprising," Jurok Byss and the Undercurrent fight to dismantle King Rath’s oppressive rule, only to be saved by the legendary Aquaman—believed dead for years. With Aquaman and Dolphin now joining their cause, the resistance gains new hope, even as Mera battles the Crown of Thorns with magic that leaves her weakened, and King Shark eyes the power vacuum left by Krush’s disappearance. Rath, enraged by the rising rebellion, declares war on all who oppose him.