That night the three of them talked, on a high terrace with most of the Golden City spread out below them. Over their heads, lights of many colors moved and shifted slowly in the sky. There were a myriad glowing specks of saffron-red about the ways of the city, and the air was full of fragrant odors. The breath of the jungle reached them even a thousand feet above ground. And the dull, persistent roar of the machines reached them too. There were five people on the terrace: Tommy, Denham, Smithers, Aten and the white-bearded old Keeper of Foodstuffs. He looked on as the Earthmen talked.
“We’re marooned,” Tommy was saying crisply, “and for the time being we’ve got to throw in with these people. I believe they came from Earth originally. Four, five thousand years ago, perhaps. Their tale is of a cave they sealed up behind them. It might have been a primitive Tube, if such a thing can be imagined.”
Denham filled his pipe and lighted it meditatively.
“Half the American Indian tribes,” he observed drily, “had legends of coming originally from an underworld. I wonder if Tubes are less your own invention than we thought?”
Tommy shrugged.
“In any case, Earth is safe.”
“Is it?” insisted Denham. “You say they understood at once when you talked of dimension-travel. Ask the old chap there.”
Tommy frowned, then labored with the question. The bearded old man spoke gravely. At his answer, Tommy grimaced.
“Datl’s gone looking for the cave their legends tell of,” he said reluctantly. “He’s the lad who wanted the city to gas Earth with some ghastly stuff they know of, and move over when the gas was harmless again. But the cave has been lost for centuries, and it’s in the torrid zone—which is torrid! We’re near the North Pole of this planet, and it’s tropic here. It must be mighty hot at the equator. Datl took a ship and supplies and sailed off. He may be killed. In any case it’ll be some time before he’s dangerous. Meanwhile, as I said, we’re marooned.”