#096 [RARE] Hastur the Unspeakable is a Cthulhu mythos deity. Although the being is most famously associated with H. P. Lovecraft, it is only mentioned in one of his stories, "The Whisperer in Darkness". Hastur is the name of a city in the Robert W. Chambers short stories "The Yellow Sign" and "The Repairer of Reputations" which appeared in his short story collection The King in Yellow. Hastur is defined as a Great Old One, spawn of Yog-Sothoth, the half-brother of Cthulhu. | Book II - Great Old One