T'CHALLA VS. THE SUB-MARINER - TO THE DEATH! Pushed to their breaking points by the Kingkiller's attacks, two kings' long-held resentments come to the forefront as Black Panther and Namor battle it out - WHO will triumph?! And what happens when the Kingkiller sets her sights on Doom's domain?! One of Marvel's greatest rivalries reaches a boiling point in this action-packed issue!