Edmund Fiske investigates the death of his friend, Robert Harrison Blake, a former correspondent of H.P. Lovecraft, who is believed to have died at the hands of the mythical "Haunter of the Dark."
"William Hurley was born an Irishman and grew up to be a taxi driver -- therefore it would be redundant, in the face of both of these facts, to say that he was garrulous."
Weird Tales (September 1950)
Comment: This story is a sequel to H.P. Lovecraft's story "The Haunter in the Dark" in which Lovecraft killed the Robert Blake character (an obvious nod to Robert Bloch). Bloch's story also includes a detailed recounting of the Lovecraft story.
Bloch and Bradbury (1969)
Mysteries of the Worm (1981 and 1993)
Complete Stories of Robert Bloch -- V 1: Final Reckonings (1990)