Thread:LostGod2000/@comment-27586321-20150310005758/@comment-1762629-20150310035038

He's spread through a few of Lovecraft's short stories. I'll give you a list of canon works he's in.

-Nyarlathotep

-The Dream-Quest of Unknown Kadath

-The Dreams in the Witch House

-The Haunter of the Dark

He receives token mentions elsewhere, but those are his primary appearances.