The White Wyrmspeaker of the cult of the Dragon. Caught and taken prisoner in the Serpent Hills inside the Tomb of Diderius.
He was guared by a contingent of bearded Devils, and was at the time held captive by the yuan-ti that laid claim to the tomb.
He is now in custody, no dragon mask in hand. He is proving useful, keeping his own life valuable with his secrets of the cult.
Returning him to the cult would be his death.