In episode 2 of True Detective, Detective Rustin Cohle reads Dora Lange's diary, and the phrases "The Yellow King" and "Carcosa" stand out.
What do these phrases mean? Do they have context outside of True Detective?
The King in Yellow is a book of short stories by Robert W. Chambers, first published in 1895:
The city of Carcosa is referenced in the forbidden play.
In the Cthulhu Mythos,