Dragged beneath the briny ocean depths - Thor's only hope for survival lies with Namor, the Sub-Mariner! Picked as the consort of the Inuit sea-goddess Sedna, the Thunder God must ask himself what's better: life as an enchanted escort or existence as plain ol' mortal Jake Olson? Plus: the mystery of the whereabouts of the missing Asgardians breaks wide open with the coming of a powerful new force of destruction!