It was now night in that redoubtable wood of monstrous trees, but because of the phosphorescence one might travel as well as by day; wherefore Carter set out upon the well-known route toward Celephaïs, in Ooth-Nargai beyond the Tanarian Hills. And as he went he thought of the zebra he had left tethered to an ash-tree on Ngranek in far-away Oriab so many aeons ago, and wondered if any lava-gatherers had fed and released it. And he wondered, too, if he would ever return to Baharna and pay for the zebra that was slain by night in those ancient ruins by Yath's shore, and if the old tavern-keeper would remember him. Such were the thoughts that came to him in the air of the regained upper dreamland.