Attuma

Namor the Sub-Mariner has returned, but this time (although he’d never admit it) he needs the Avengers’ help! A barbarian called Attuma has overthrown Atlantis, and he’s threatening to invade the surface world.

Attuma created a device that created earthquakes, causing massive trouble for both Atlantis and the surface world as well. The Avengers come to Atlantis and team up with Namor to fight of the coup orchestrated by Attuma.