The music which issued from the depths of that stunningly mysterious pa.s.sage swelled to a crescendo--and stopped. Kirby clung there to his precarious perch, his feet slipping on the gla.s.s under them with every move he made, and feelings stirred in his heart which had never been there before.

Then, as silence reigned where the music had been, something prompted him to look up. The next instant he stifled a cry.

With widening eyes he saw the flash of a white arm and the gleam of a knife hovering over the spot where his taut rope pa.s.sed out of the geyser opening into the sunshine of the outer world. Again he stifled a cry. For crying out would do no good. While the suppressed sound was still on his lips, the knife flickered.

Then Kirby was shooting downward, the severed line whipping out after him. The first plunge flung him off his feet. A long swoop which he took on his back dizzied him. But as the fall continued, he was able to slow it a little by bracing arms and legs against the tunnel walls.

"Holy Jeehosophat!" he gurgled.

But there seemed to be no particular danger. The slide was as smooth as most of the chutes he had ever encountered at summer swimming pools. If ever the confounded spiral pa.s.sage came to an end, he might find that he was still all right. As seconds pa.s.sed and he fell and fell, it seemed that he was bound for the center of the earth. It seemed that--

He swished around a multiple bend, and eyes which had been accustomed to darkness were blinded by light.

It was light which radiated in all colors--blue, yellow, browns, purples, reds, pinks, and then all the new colors for which he had no name. Somehow Kirby knew that he had shot out of the tunnel, which emerged high up in the face of a cliff, and that he was dropping through perfumed, brilliant air resonant with the sound of birds and insects and human cries. The funny thing was that the pull of gravity was not right, somehow, and he was dropping fairly slowly. From far below, a body of what looked like water was sweeping up to meet him. Kirby closed his eyes.

When he opened them again, his whole body was stinging with the slap of his impact, and he found that it was water which he had struck. The proof of it lay in the fact that he was swimming, and was approaching a sh.o.r.e.

But such water! It was milky white and perfumed as the geyser flow had been, and it seemed luminous as with a radium fire. Had he not realized presently that the fluid probably contained enough a.r.s.enic to finish a thousand like him, he would have thought of himself as bathing in the waters of Paradise.

But then he began to forget about the poison which might already be at work upon him.

Ahead of him, stretched out in the gorgeous, colored light, ran a beach which was backed by heavy jungle. And on the beach stood the lovely creatures, all clad in shimmering, glistening garments, whose flutelike cries had come to him as he fell.

Kirby looked, and became almost powerless to continue his swim. The beauty of those frail women was like the reputed beauty of bright angels. That paralyzing effect of wonder, however, did not last long.

The girls moved forward to the water's edge, and, laughing amongst themselves, beckoned to him with lovely slender hands whose every motion was a caress.

"Be not afraid," called one in a curious patois dialect, about five-sixths of which seemed made up of Spanish words, distorted but recognizable.

"The water would kill you," called another, "as it killed the Spaniard in armor. But we are here to save you. I will give you a draught to drink which will defeat the poison. Come on to us!"

Kirby's heart was almost literally in his mouth now, because the girl who promised him salvation was she whose lips had formed a kiss at him from the green-gloomy throat of the geyser.

His feet struck a shale bottom. Panting, he stood up and was conscious of the fact that despite his forlornly dripping and dishevelled condition, he was tall and straight and big, and that for some reason all of the girls on the gleaming sand, and one girl in particular, were anxious to receive him here.

The one girl had drawn a small, gleaming flask of gold from the misty bodice of her gown, and was holding it out while she laughed with red lips and great, dazzling dark eyes.

"_p.r.o.nto!_" she called in pure Spanish, and other girls echoed the word.

"Oh," went on the bright owner of the flask, "we thought you would _never_ have done with your work on the rope. It took you so long!"

Kirby left the smooth lake behind him and stood dripping on the sand.

The moment the air touched his clothes, he felt that they were stiffening slightly. Yet the sensation brought no terror. He could not feel terror as he faced the girls.

"Give him the flask, Naida!" someone exclaimed.

"Ah, but the G.o.ds _have_ been kind to us!" echoed another.

The girl with the flask made a gesture for silence.

"Is it Naida you are called?" Kirby put in quickly, and as he spoke the Spanish words, the roll of them on his tongue did much to make him know that he was sane and awake, and not dreaming, that this was still the Twentieth Century, and that he was Freddie Kirby.

Answering his question, Naida nodded, and gave him the flask.

"A single draught will act as antidote to the poison," she said.

"I drink," said Kirby as he raised the flask, "to the many of you who have been so gracious as to save me!"

A flashing smile, a blush was his answer. And then he had wetted his lips with, and was swallowing, a limpid liquid which tasted of some drug.

"Enough!" Naida ordered in a second.

As she reached for the flask, her companions closed in as though a ceremony of some sort had been completed.

"Is it time to tell him yet, Naida?" piped one of the girls, younger than the rest, whom someone had called Elana.

"Oh, _do_ begin, Naida," chorused two more. "We can't wait _much_ longer to find out if he is going to help us!"

Kirby turned to Naida, while a soothing sensation crept through him from the draught he had taken.

"Pray tell me what it is that I am to be permitted to do for you. I can promise you that the whole of my life and strength, and such intelligence as I possess, is yours to command."

Excited small cries and a clapping of hands answered him. As for Naida, her face lighted with glowing joy.

"Oh, one who could say that, _must_ be the friend and protector of whom we have stood in such bitter need!"

"What," asked Kirby, "is this need which made one of you cut my rope, so that I should come here?"

A momentary silence was broken only by the hum of insects in the perfumed air, and by the golden thrilling of a bird back in the jungle.

Then Kirby beheld Naida bowing to him.

"So be it," she said in a voice low and flutelike. "I will speak now since you request it. Already you have seen that you are here in our world because we conspired amongst ourselves to bring you here. Our reason--"

She paused, looked deep into his eyes.

"Amigo," she continued slowly, "we whom you see here are the People of the Temple. For more centuries than even our sages can tell, our progenitors have dwelt here, where you find us, knowing always of your outer world, but remaining always unknown by it. But now the time has come when those of us who are left amongst our race need the help of one from the outer races we have shunned. Dangers of various orders confront us who have waited here for your coming. When we first discovered you in the Valley of the Geyser, the idea came to me that we must make you understand our troubles, and ask of you--"

But then she stopped.

As Kirby stared at her, the gentleness of her expression was replaced by a swift strength which made her majestic.

The next moment bedlam reigned upon the beach.