Catherine Asaro (born 1955) is an American science fiction and fantasy author. She is best known for her books about the Ruby Dynasty set in the Skolian Empire. These novels, each telling a segment of a story that unfolds over several generations of characters, is one of a power struggle between two interplanetary empires. The Ruby Dynasty, (ancient rulers of the Skolian empire) while possessing empathic and telepathic abilities enhanced by tiny "pico" and "nano" technology, comprise a monarchy plagued by internal struggle and conflict with the elected assembly. The Eubian Traders, on the other hand, while larger in number and more successful economically, comprise a society built entirely of a slave hierarchy run by amoral Aristos, who, through genetic engineering gone astray have no capability for compassion, but rather experience pleasure in the form of "transcendence" through the projected suffering of powerful psions that have been kidnapped from the Skolian Imperialite.