The Dragon Kings are descendants of Set, an Old One. It's a race which was sired by his son Sligguth, spawned a million years ago (together with Serpent Men. Half a million years ago, in the time of elder Hyperborea, the Dragon-Kings ruled the Earth (including the continent of Lemuria). It was the Age of Dragons, when reptilian kings and necromancers ruled the land, studying dark magic and building monolithic cities of black stone. Masters of science and technology, unlike any seen on Earth.