Have you seen the Yellow Sign?

“He mentioned the establishment of the Dynasty in Carcosa, the lakes which connected Hastur, Aldebaran and the mystery of the Hyades. He spoke of Cassilda and Camilla, and sounded the cloudy depths of Demhe, and the Lake of Hali. ‘The scolloped tatters of the King in Yellow must hide Yhtill forever’, he muttered, but I do not believe Vance heard him. Then by degrees he led Vance along the ramifications of the Imperial family, to Uoht and Thale, from Naotalba and Phantom of Truth, to Aldones, and then tossing aside his manuscript and notes, he began the wonderful story of the Last King.”

—Robert W. Chambers, “The Repairer of Reputations”