👉 Blencorn is a fictional character from the "Siren's Song" series by J.R.R. Tolkien, first published in 1937. Blencorn is a spirit who has been transformed into a human since his transformation into Sauron, the High King of All Mages and Lord of the Ring. Blencorn lives on Mount Doom in Middle-earth and seeks to reclaim his kingdom from the Elves, who have taken it as their own. He is often depicted as