Caught Between Worlds
The Clannacht, or Clan Stone, is a potent magic item that allows the creation of a Stone Clan (also called a True Clan or…snicker…a Stoned Clan). A Clannacht is tied to its Stone Clan until either all the Clan members are dead, all the Clan members formally abandon their memebership, or the Clan Master uses a Ritual of Disbanding.
Current thinking is that Clan Stones were created sometime over a thousand years ago by a council of Power Touched, primarily of The Light, that sought to miminize the damage caused by the constant warefare, sabotage, and blockades that were occuring between the hundreds of city-states that made up the known world at the time. They created not only the potent magic items themselves, but through magics unknown to modern Sensitives, they created a vast and potent Network that connected them. The purpose was to provide incentives to engage in certain less destructive activites, and penalties for direct and violent conflict. In return, the Stone Clan memebers found themselves to stave off or even cheat death, communicate more effectively, and find work more easliy. After a time there was success, since the level of destructive conflict diminished to the point where civilization began to build up and flourish. The Dark generally sees the creation of the Clan Stones as one of their greatest failings, and have actively sought ways to disrupt or destroy them, with mixed results.