North Pole. In the midst of these snow-covered mountains, numerous engineering machines emerged from the erected Space Bridge light screen, carrying all kinds of sophisticated biological testing instruments into the Fortress of Solitude. Inside the Fortress of Solitude, the armory that wasted space, Clark Kent's room, the spaceship hangar, entertainment room, souvenir display room, and several rooms Superman had built for Batman, Kara, and Lois Lane were all arranged by Zero to be dismantled by engineering machines.