His mother was an Atlantean Princess and his father was an American surface dweller. He is the worlds first mutant. He is the Avenging Son. He is the Savage Sub-Mariner. Prince Namor ventures to the surface worlds greatest city, New York, where in the halls of the United Nations building he seeks to establish peace once and for between his kingdom and theirs. But it is on his return home when he is attacked by an undersea assassin and her leviathan that Namor makes the most startling discovery of all...Atlantis has fallen!