Shaurash-Ho (The Prowler Among the Tombs, and Father of All Ghouls (source?)) is the progenitor of the ghoul species (source?), possibly through mating with Bast, as the goddess has also been associated with ghouls (CIRCLE: "The Brood of Bubastis"). Shaurash-ho is a descendent of Cthulhu and parent of Yogash the Ghoul (HPL: Selected Letters of H. P. Lovecraft) and it has been postulated that it might itself have been a Deep One (source?). The Book of Eibon identifies Nug as the "grandfather of all ghouls on the earth-plane" (EXP: "The Descent into the Abyss"), but other sources claim that Nug never inhabited the Earth (HPL: Selected Letters of H. P. Lovecraft), although it might still have visited it. Friedrich von Junzt names Naggoob the "Father of Ghouls" (EXP: "The Horror in the Gallery"), possibly suggesting a connection between Naggoob and Shaurash-ho.
This mysterious entity is mentioned in H. P. Lovecraft's letter to James F. Morton as a descendant of Cthulhu which spawned Yogash the Ghoul. Yogash in turn is the ancestor of K'baa the Serpent and Ghoth the Burrower. The latter would have sired with a Roman noblewoman Viburnia the legendary ancestor of Lovecraft himself. The appearance of Shaurash-Ho has never been described.