Coalfire Stones

Named after their creator, Eva Kollfehr, coalfire stones were once quite common, in the early years of the kingdom. They glowed white-hot, while being moderately warm to the touch. Legion mages crafted these magic stones to power simple mechanical creations and small automatons.
Each coalfire stones was unique to the object it powered, so mages sometimes used them as keys, to guard valuables. For example, if a coalfire stone was used to power a lock mechanism, the mage could remove the stone and be certain that the lock could not be opened, until the coalfire stone was put back in its place.
Category:Dungeon Siege III
Category:Books