Aquaman Vol. 9 (2025-2026) / Emperor Aquaman (2026-) #21

Plot

It's an epic clash of good versus evil in the ultimate battle on the seven seas in "Tidal War: Part One"! When Ocean Master, Black Manta, the Crimson Queen, and more forged an alliance to destroy their shared archenemy, they had no idea that the destruction of Aquaman would also signal the vacated throne of the new Empire of the Blue! But now a massive tidal wave offers the opening salvo to a conflict that will span all the kingdoms of the heavens themselves. Do not miss the start of this new Aquaman adventure!