The Crypt of the Dying Sun is a demiplane dominated by a gigantic, dying, blood-red sun and is home to a vampiric sorcerer named Larynsang the Wasted. Originally from the Material Plane, he now lives here in a reconstructed mausoleum. He travels back to the Material through his own portals from time to time to hunt for food, dragging them back to his lair where he does not have to worry about the deleterious effects of normal sunlight.