Rulke, derogatorily known as the Great Betrayer, was widely considered to be the greatest of all the Charon and the most powerful mancer in all the Histories. He was one of three Charon to venture to Santhenar in the hunt for the Golden Flute, which he had commissioned by Shuthdar in the first place. It was Rulke who originally discovered the secret of flight, through his great construct, which was also a means of repelling attacks by the Secret Art and navigating the ever changing Way Between the Worlds. He was killed by Tensor at the end of the Time of the Mirror.