To answer your question, my lord: yes, I have indeed heard of this "red lyrium" of which you speak. A single piece of it surfaced in the eastern city of Kirkwall, and its influence alone was nearly enough to cause the city's destruction. As near as we can determine, it is regular lyrium that has been somehow corrupted. Those who have touched red lyrium—or even come near it—report that it "sings" to them, like whispers in the mind that slowly drive them mad. —From a partially burned letter by an unknown writer, affixed with the Grey Warden seal.