The Inspired tried to wipe arcane magic from Sarlona. They failed, and a secret cabal still lurks in the heart of the land of the Inspired. Although those who oppose the Inspired might consider this turn of events a good thing, the Heirs of Ohr Kaluun are anything but good.
Wizards and priests of fell power ruled the ancient Sarlonan kingdom of Ohr Kaluun, forging pacts with evil forces that turned them into the race of tieflings. The Heirs of Ohr Kaluun delve into the remnants of this sinister power. Members, many of them tiefling descendants of the ancient rulers, use whatever means they can to elevate and protect themselves, and to harm the Inspired. Any damage to or corruption of innocent creatures is of little concern to them.
If any force in Riedra actually frightens the Inspired, it is the dissident group known as the Heirs of Ohr Kaluun. Long ago, the nation of Ohr Kaluun was a center for sinister magic. Its priests performed terrible rituals invoking the Dark Six, and its wizards trafficked with fiends in their quests for mystic power. In the Sundering, the people of this land were almost completely obliterated. Some of the few who remain are skulks, transformed by foul spells so they could hide from their enemies.
All loyal Riedrans know that the ruins of Ohr Kaluun are the haunts of altavars, and that the magic hidden within the war mazes is deadly and damning. Still, some don't care. The Heirs of Ohr Kaluun knowingly embrace this darkness, hoping to gain power to raise themselves above the Inspired. Humans, skulks, ogre mages, dwarves—what binds these people together is a thirst for mystic knowledge and a hatred for the Inspired. Like the first wizards of Ohr Kaluun, they are willing to sacrifice anything—or anyone—to gain the power they seek. They oppose the Inspired, but anyone who allies with the Heirs of Ohr Kaluun soon learns that the enemy of an enemy is not always a friend.
Like the Cults of the Dragon Below, the Heirs of Ohr Kaluun are not a unified force. The Harmonious Shield and the Thousand Eyes are always hunting these foul wizards, and kill those they discover without hesitation. But new sects always rise from the ashes, innocents corrupted by the promises of the darkness.
Despite their name, the Heirs of Ohr Kaluun are not confined to the islands. A Kaluunite wizard could easily take an interest in the forbidden lore of the yuan-ti or the lost magics of the aventi.
Getting the PCs Involved: The Heirs of Ohr Kaluun are Riedra's answer to the Order of the Emerald Claw—they're the people who are unquestionably up to no good. These people willingly accept damnation (or so they believe) in exchange for power and vengeance. They can be disturbing allies or unexpected foes for those exploring Riedra—a surprise for those who think the Inspired are the greatest evil in the land. The Inspired have conquered Riedra, but they at least take care of the people. If the Heirs of Ohr Kaluun took power, horror would be the replacement for stability and oppression.