The Caerogath were Earth-Demons,possibly Ainur or Spirits of Arda that were animate but corrupted manifestations of the substance of Arda.It is unknown if they had a true will on their own or were soulless abominations driven by the Mordo.
| Boromir: "Is it not a strange fate that we should suffer so much fear and doubt for so small a thing? So small a thing!" - J. R. R. Tolkien, The Fellowship of the Ring II:10 |