The Dearg Ruadhri, or "Red horsemen" are an Aen Elle cavalry unit from Tir ná Lia commanded by Eredin Bréacc Glas. Spoiler warning: Significant plot details follow. In the human world, they are seen as a frightening group of spectral horsemen known as the Wild Hunt and lead by the King of the Wild Hunt. They are said to appear mostly in the winter and are harbingers of death and destruction. They are also blamed for the mysterious disappearances and reappearances of people; people who are said to return completely unaged decades after their apparent abduction. Significant plot details end here.