The Dragon-blooded are mortal men that have in their blood, in their heritage, the bless and blood of dragons to give them power above what a mere mortal would have. Once created to be the foot soldier of their Solar masters, with the help of the Siderals they overthrew those they considered tyrants.
Under the command of the Scarlet Empresses the Dragon Blooded now rules creation. And their families plot, and war among each other, mostly veiled.
Each Dragon Blooded is born to an Elemental Aspect, due to the Elemental Dragon that powers his blood. This series of books detail in each, one of those aspects. Bringing new charms, artifacts and important members to be use by those of its aspect.