Inhumans

"The Inhumans have always been one of Marvel's most enduring oddities. A race of genetic outsiders, they live secluded in their island kingdom of Attilan, preferring not to mix with the outside world. Even stranger, their genetic mutations are self-endowed; each Inhuman, as a coming-of-age ritual, is exposed to the Terrigen Mists, a strange substance that imparts unearthly powers -- some extraordinary, some monstrous. But now, the kingdom of Attilan is under attack from without and within. Can the Royal Family, led by Black Bolt, repel the foreign invaders who blast at their outer defense, as well as the internal threat of Black Bolt's insane brother, Maximus the Mad?"
"With the city of Attilan under attack from without and within, the fate of an entire civilization rests on the shoulders of Black Bolt, leader of the secretive and extraordinary Inhumans. The Inhumans are led by their king Black Bolt, and his Royal Family, consisting of Medusa, Karnak, Gorgon, Triton, Crystal, Maximus the Mad, and the canine Lockjaw. Both Crystal and Medusa have been members of the Fantastic Four; Crystal has also been a member of the Avengers."@en