Hastur (The Unspeakable One, The King in Yellow, Him Who Is Not to be Named, Assatur, Xastur, H'aaztre, or Kaiwan) is an entity of the Cthulhu Mythos. Hastur first appeared in Ambrose Bierce's short story "Haïta the Shepherd" (1893) as a benign god of shepherds. Subsequently Robert W. Chambers used the name in his late 1800s stories to represent both a person and a place associated with several stars, including Aldebaran. H. P. Lovecraft was inspired by Chambers's stories and briefly mentioned Hastur in The Whisperer in Darkness (1930). Later writers have also adapted Hastur in a variety of tales. Appearances Hastur in the mythos In Bierce's "Haïta the Shepherd", which appeared in the collection Can Such Things Be?, Hastur is more benevolent than he would later appear in August Derleth's mythos stories. Another story in the same collection ("An Inhabitant of Carcosa") referred to the place "Carcosa" and a person "Hali", names which later authors were to associate with Hastur. In Chambers' The King in Yellow (1895), a collection of horror stories, Hastur is the name of a potentially supernatural character (in "The Demoiselle D'Ys"), a place (in "The Repairer of Reputations"), and mentioned without explanation in "The Yellow Sign". The latter two stories also mention Carcosa, Hali, Aldebaran, and the Hyades, along with a "Yellow Sign" and a play called The King in Yellow. H. P. Lovecraft read Chambers' book in early 1927 and was so enchanted by it that he added elements of it to his own creations. There are two places in Lovecraft's own writings in which Hastur is mentioned: I found myself faced by names and terms that I had heard elsewhere in the most hideous of connections—Yuggoth, Great Cthulhu, Tsathoggua, Yog-Sothoth, R'lyeh, Nyarlathotep, Azathoth, Hastur, Yian, Leng, the Lake of Hali, Bethmoora, the Yellow Sign, L’mur-Kathulos, Bran, and the Magnum Innominandum—and was drawn back through nameless aeons and inconceivable dimensions to worlds of elder, outer entity at which the crazed author of the Necronomicon had only guessed in the vaguest way. — H. P. Lovecraft, "The Whisperer in Darkness" It is unclear from this quote if Lovecraft's Hastur is a person, a place, an object (such as the Yellow Sign), or a deity. This ambiguity is recurrent in Lovecraft's descriptions of mythic entities. Later in the same story, it is described that the Mi-Go have been attacked by followers of Hastur, and Hastur is