Page 45: The Tower of Koth! Interestingly, I recently realized that the 'sign of Koth' also appears in "The Case of Charles Dexter Ward", fairly explicitly establishing that "Charles Dexter Ward" takes place in the same universe as "Dream-Quest."
The original 12"x18" art board from page 45 of my graphic novel adaptation of "The Dream-Quest of Unknown Kadath." Shipped wrapped in waterproof plastic and securely bound between sheets of heavy cardboard. Includes pencil marks, bleed marks, and all the other signs of how the art was originally made. Each page took 8-12 pages to draw. I'm happy to sign the page for you, just write your name in the notes field when you order it!