History
Attuma is the nemesis of Namor the Sub-Mariner. He usurped the throne from Namor by using Sonic Emitters upon the Atlanteans, which forcefully dragged the former off his throne. It turns out the Sonic Emitters given to Attuma were part of a bargain from the Masters of Evil so that they rightfully take away the Tome of Asarius from the catacombs. In the mission, he is always escorted by his lackey, Tiger Shark.[1]