her ancestors. Ensuing mornings were devoted to conferences in the amphitheatre with Duca and caciques.
After the fourth day Kirby, at Naida's insistence, moved into splendid quarters in the castle—a suite of chambers across the amphitheatre from those in which the caciques dwelt. In practically forcing the move on Kirby, Naida won his consent finally by agreeing to have their wedding ceremony performed on the day of his coronation; then she would come to the castle with him.
The afternoons of that first fortnight before the wedding and coronation were spent in hunting and fishing. Also Kirby and Naida visited often the aged people of the race, who dwelt in crystalline, vine covered houses like those of the girls, but removed from them. Naida's relatives were dead, but she had relatives there, and to all these aged ones, who sat living in the past, she did what she could to explain present developments in the affairs of the younger generation.
Last but not least, Kirby set aside certain hours each afternoon which he devoted to the formation of a rifle squad amongst the girls. Six rifles he had, and in turn he trained each of the girls in their use, having set up a range at the foot of the plateau cliffs. The results he gained made him feel that the day would come soon enough when he would dare launch an offensive against the ape-people; and especially pleasing was the sense of power over the Duca which he gained. The Duca showed no sign of treachery. Yet Kirby did not trust him. Never did he quite forget the misgivings which had lingered in his mind after the first conclave.
AS for his relationship with Naida, that grew with every moment they could steal to spend with each other. And side by side with their growing knowledge of each other grew, for Kirby, an increasing store of knowledge of the realm.
He learned, amongst other things, what seemed the origin of the worship of the Serpent, Quetzalcoatl, amongst primitive Mexican races. The time had been when the People of the Temple had mingled freely with the races above them; and, that they might have ready means of egress to the world, they had built the tunnel through which Kirby had entered the Valley of the Geyser. Thus, going and coming as they did, they had spread their cult of the worship of Quetzalcoatl; and when, eventually, strife arose between the peoples of upper world and lower, and the People of the Temple withdrew to their realm, they left behind them the Serpent myth which was to live through countless centuries.
The tunnel, Naida said, had been abandoned when her people left the upper world once and for all, and its use for any reason prohibited. This, Naida gave as the reason why none of them went near the tunnel now, and why the cylinder of gold had lain in the canyon undiscovered. It was the explanation she had promised on the day in the tower, when first she saw the cylinder.
So the days passed, until the day set aside for wedding and coronation dawned. On that morning, Kirby, having concluded a long conference with the Duca, was walking with Naida in the gardens outside the castle.
"Tell me," he said to her: "do you yourself believe that this Serpent has the powers of a God?"
Naida looked at him quickly, a sudden fright in her eyes.
"I believe the Serpent exists to-day, somewhere in the distant reaches of the chasm, beyond the Rorroh forest."
"Yes, but do you believe the Serpent is God?"
ACTUALLY frightened now, she looked swiftly about. But when she saw that they were alone, confidence returned.
"No!" she exclaimed. "I do not believe Quetzalcoatl is a god. I believe
