"Just as he drew the curtain down I saw what looked to me like a cliff of solid gold. It had been dug out into a cavern in which Isaw a vessel like this, and men in diving suits digging and loading it."This took the Englishman's breath away for a moment, then he remarked: "That accounts for the heel-tap we found; who knows, these people may be possessors of the richest gold and silver mines on earth."The bell rang again. "We are rising," said Johnston. "If this is the only way of reaching the king's domain, we could never get back to civilization unless they release us of their own accord, that's certain!""Heavens, isn't it still!" exclaimed the Englishman. "The machinery of this thing moves as noiselessly as the backbone of an eel. I wish I could understand its works.""I am more concerned about where we are going. I tell you we are being taken to some wonderful place. People who can construct such marvels of mechanical skill as this boat will not be behind in other things; then look at the physiques of those giants."Just then the man who had drawn down the shade came in and raised it. Both the captives pretended to be uninterested in his movements, but when he had withdrawn they looked through the glass eagerly.
"See," whispered Thorndyke, in the ear of his companion, "the walls are close to us, and are as perpendicular as those of the lake in which they found us."Johnston said nothing. His attention was riveted to the walls of rock; the vessel was rising rapidly. An hour passed. The soft music had ceased, and the air seemed less dense and fresher.
Then the waters suddenly parted over the roof and ran in crystal streams down the oval glass.
They were on the surface, and the vessel was slowly gliding toward the shore which could not be seen owing to there now being no light except that inside the boat. Captain Tradmos entered, followed by two of his men holding black silken bandages.
"We must blindfold you," he said; "cap- tives are not allowed to see the entrance to our kingdom."Without a word they submitted.
"This way," said the captain kindly, and, holding to an arm of each, he piloted them out of the vessel to the shore. Then he led them through what they imagined to be a long stone corridor or arcade from the ringing echoes of their feet on the stone pavement. Presently they came to what seemed to be an elevator, for when they had entered it and sat down, they heard a metallic door slide back into its place, and they descended quickly.
They could form no idea as to the distance they went down; but Thorndyke declared afterward that it was over ten thousand feet.
When the elevator stopped Captain Tradmos led them out, and both of the captives were conscious of breathing the purest, most invigorating air they had ever inhaled. Instantly their strength returned, and they felt remarkably buoyant as they were led along over another pavement of polished stone.
Tradmos laughed. "You like the atmosphere?"
