The Piper of Illmarsh
A member of the infamous "Harrowstone Five."
Before abtucting his victims, the Piper would taunt them from afar with haunting melodies from his flute. Eventually he would capture them, paralyze them using lich dust, and then allow them to be drained of blood by a group of stirges he kept as pets.
The PCs believe that the Piper’s spirit may be responsible for recent stirge attacks in Ravengro.