Person or city. In Chamber's The King in Yellow it is referenced only once, in the story The Repairer of Reputations: "The scolloped tatters of the King in Yellow must hide Yhtill forever" The entry in Fantastic Worlds describes either the Stranger or the King In Yellow. In Broadalbin and Delta Green: Countdown, it is stated that Yhtill is a city that has previously been absorbed by Carcosa. It also appears in The Night World of the Insylum RPG.