Emperor Aquaman #21 — PREORDER

⚡ PREORDER: Releases Wednesday, September 9, 2026. Your copy ships release week.

Preorder price $3.19 (20% off the $3.99 cover price).

DC Comics

THE TIDAL WAR BEGINS! 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!

Creative team: (W) Jeremy Adams (A/CA) John Timms

How preorders work: every preorder is 20% off cover price. You’re charged at checkout and your book ships the week of release in a rigid comic mailer, bagged, boarded, and Near Mint. Cancel any time before release for a full refund. Order by August 17 (final order cutoff) and your copy is guaranteed.