An untold tale of the young Sub-Mariner - and the dark, chilling birth of one of Atlantis' greatest villains! The players: Namor, Lady Dorma of Atlantis, the outsider Attuma - all still in their teen years and the Swift Tide, the Atlantean Empire's greatest heroes. It begins with alliances and possibilities but what lies ahead is tragedy, betrayal and deadly magics unleashed! As the three youths join the Swift Tide on a vital mission, the ensuing catastrophe brings to life the most menacing threat Atlantis has ever faced! Will the Black Tide cut a swath of devastation and death across the ocean floor, laying waste to all that stands before them? It's a deep dive into Marvel history - where the secrets of the King in Black are buried! Collecting: King in Black: Namor (2020) #1-5