Before he was Aquaman, Arthur Curry was King of Atlantis. But the superstitious Atlanteans, with their hatred of the surface-dwellers, could not love a king who was half human. He left his undersea kingdom the moment he joined the Justice League, relinquishing rule of Atlantis to his half-brother Orm, the Ocean Master. Ever since, the world below the waters has maintained an uneasy peace with the world above. Earth's super heroes are distracted elsewhere, a mysterious force is pushing Atlantis and the surface world to the brink of war. Casualties rise and a full-scale invasion seems increasingly likely, until only the Justice League can prevent a bloody confrontation that would doom half of civilization to a watery grave. Beware: He who controls the Throne of Atlantis will decide the fate of the world. From the all-star creative team of Geoff Johns, Ivan Reis, Paul Pelletier, and Tony S. Daniel comes a full-scale battle for supremacy over land and sea, from the towers of Metropolis and the streets of Gotham City to the ocean's darkest depths! Includes Aquaman #15-16.