Vor Rukoth was one of the jewels of the empire of Bael Turath. Sometimes called the City of Forges, it was ruled over by the emperor’s sister, a human named Lady Najala. During the long and violent war with the dragonborn empire of Arkhosia, the powerful humans of Bael Turath—nobles, wealthy merchants, spellcasters, and priests—underwent a sinister transformation through diabolic pacts. Among the first to swear the oaths to devils and become a tiefling was Lady Najala. Seeing her power and influence grow as a result of her oaths, many of the other nobles of Vor Rukoth lined up for the opportunity to participate.