Celephais by H.P. Lovecraft
"...Kuranes had previously entered that abyss only at night, and wondered what it would look like by day; so he watched anxiously as the column approached its brink. Just as they galloped up the rising ground to the precipice a golden glare came somewhere out of the west and hid all the landscape in effulgent draperies. The abyss was a seething chaos of roseate and cerulean splendour, and invisible voices sang exultantly as the knightly entourage plunged over the edge and floated gracefully down past glittering clouds and silvery coruscations. Endlessly down the horsemen floated, their chargers pawing the aether as if galloping over golden sands; and then the luminous vapours spread apart to reveal a greater brightness, the brightness of the city Celephais, and the sea coast beyond, and the snowy peak overlooking the sea, and the gaily painted
galleys that sail out of the harbour toward distant regions where the sea meets the sky.
And Kuranes reigned thereafter over Ooth-Nargai and all the neighboring regions of dream, and held his court alternately in Celephais and in the cloud-fashioned Serannian. He reigns there still, and will reign happily for ever, though below the cliffs at Innsmouth the channel tides played mockingly with the body of a tramp who had stumbled through the half-deserted village at dawn; played mockingly, and cast it upon the rocks by ivy-covered Trevor Towers..."