Aquaman returns to Atlantis to face Mera's wrath for his absence during Aquababy's death, but both must soon face the menace of a villain named Seaquake. At long last, Aquaman returns to Atlantis. His is not a welcomed homecoming. Arriving during the funeral ceremony for his infant son, murdered by the Black Manta, Aquaman finds that his wife, Mera, blames him for the death of their son. Believing that his son had died, Aquaman immediately took off to exact vengeance on the killer. In truth, Arthur, Jr. survived, but was in dire need of very special medical treatment. Mera traveled to her native Dimension Aqua to retrieve the necessary device to save her son, but, by the time she returned, Arthur, Jr. had died. Now, Mera holds Aquaman accountable for the boy's death, accusing him of putting his life as an adventurer over his duties as a father. Mera lashes out violently at Aquaman, with her water controlling abilities. Aquaman telepathically summons the octopus, Topo, to gently restrain his wife. Vulko asks Aquaman to leave the funeral ceremony, as his presence is only upsetting Mera. Angrily, the Sea King departs his son's funeral. Meanwhile, many miles away, Aqualad, also long absent from Atlantis, is en route back to the great domed city. Aquaman and Topo are swimming away from Atlantis when the octopus is suddenly struck by a miniature wrecking ball. Aquaman turns to see a strange submersible craft releasing dozen of demolition drones into the water. Fueled by a mix of grief and rage, Aquaman violently vents his frustrations out on the drones. When the drones prove to be more formidable than Aquaman expected, he summons electric eels to short circuit the robots. Boarding the vessel, Aquaman comes face-to-face with a new adversary, Seaquake. En route to Venice, with plans to destroy the city, Seaquake has paused to kill Aquaman, in the hopes of establishing a greater name for himself. A pitched battle ensues.