And he at the same time took a most interested look at them.

They had unmistakable human faces!

He must be dreaming! For even if Osborne was right about his supposed super-race at the bottom of the sea, this race could not be human, for the pressures here would be entirely too great. No human being could possibly stand two thousand pounds per square inch!

Having satisfied their curiosity, the four divers pulled themselves up onto the shelf, and sat there in a row with their legs hanging over.

Abbot glanced upward at the ceiling lights, but these had become strangely blurred. There seemed to be an opaque barrier above him, and this barrier seemed to be slowly descending. The lights blurred out completely, and were replaced by a diffused illumination over the entire ripply barrier. And then it dawned on the young man that this descending sheet of silver was the surface of the water. He was in a lock, and the water was being pumped out.

The surface settled about the helmets of the divers, and their helmets disappeared; then their shoulders and the rest of them. At last it reached the level of Abbot's window. The divers could again be seen, and among then on the shelf there stood a half dozen naked bearded men, clad only in loin-cloths. They had evidently entered the lock while the water was subsiding.

These men unbuckled the helmets of the divers and helped them out, and then splashed down into the water and peered in through the windows of the bathysphere. Presently some of them left through a door at the end of the platform, but soon reappeared with staging, which they set up around the sphere. Then, climbing on top, they got to work on the man-hole cover.

As George Abbot realized their purpose, he became frantic. Although these men appeared to be human, just like himself, yet his scientifically-trained mind told him that they must be of some very special anatomical structure, in order to be able to withstand the immense pressures at the bottom of the Pacific. It was all right for them to be out there, but it would be fatal to him!

And then the heavy circular door above him began slowly to revolve.

This was terrible! In a moment the crushing pressures of the depths would come seeping in. Rising unsteadily upon his knees, the young man tried with his fingers to resist the rotation of the door; but it continued to turn.

Yet no pressure could be felt. The door became completely unscrewed.

It was pried up, and slid off the top of the bathysphere, to crash upon the floor outside. Inquisitive bearded faces peered down through the hole.

Young Abbot slumped to the cold bottom of the sphere and stared back at them. He was saved; incredibly saved! These were real people, the air was real air and he must therefore be on the surface of the earth, instead of at the bottom of the Pacific as he had imagined! With a sigh of relief, he fainted....

When he came to his senses again, he was lying in a bed in a small room. Bending over him was the sweetest feminine face that he had ever seen.

The girl seemed to be about twenty years of age. She was clad in a clinging robe of some filmy green substance. Her hair was honey-brown, short and curly, and her forehead high and intelligent. Her eyes, an indescribable shade of deep violet, were matchlessly set off by her ivory skin.

The young man smiled up at her, and she smiled back. Thus far it had not occurred to him to wonder where he was, or why. No recollection of his recent strange adventures came to him. To him this was an exotic dream, from which he did not care to awake.

She spoke. Her words were unintelligible, and unlike any language which George Abbot knew or had even heard; and he was an accomplished linguist in addition to his other attainments.

And her words were not all that was strange about her speech, for the very tones of her voice sounded completely unhuman, although not displeasing. Her talk had a metallic ring to it, like the bra.s.sy blare of temple gongs, and yet was so smooth and subdued as to be sweeter than any sound that the young scientist had ever heard before.

"Beautiful dream fairy," replied the enraptured young man, "I haven't the slightest idea what you are saying, but keep right on. I like it."

His own voice sounded cra.s.s and crude compared to hers. At his first words she gave a start of surprise, but thereafter the sound did not appear to grate on her ears.

Then one of the bearded men in loin-cloths entered, and he and the girl talked together, quite evidently about their patient. The man's voice had the same strange metallic quality to it as that of the girl, but was deeper, so that it boomed with the rich notes of a bell.

At the sight of the man, young Abbot's memory swept back, and he remembered the adventure of his diving-sphere, and its capture, one mile down, by the strange shark-fish with human hands and arms. But how he had reached the surface of the earth again, he couldn't figure out. Nor did he particularly care.

The strange man withdrew, and the girl sat down beside the bed and smiled at Abbot. He smiled back at her.

Presently another girl entered and called, "Milli!"

The girl beside the bed started, and looking up asked some question, to which the other replied.

The newcomer brought in some strange warm food in a covered dish and then withdrew. The first girl proceeded to feed her patient.

After the meal, which tasted unlike anything which the young man had ever eaten before, the beautiful nurse again essayed conversation with him. She seemed perplexed and a bit frightened that he could not understand her words. Somehow, the young man sensed that this girl had never heard any other language than her own, and that she did not even know that other languages existed.

Strengthened by his food, he determined to set about learning her language as soon as possible. So he pointed at her and asked, "Milli?"

She nodded, and spoke some word which he took for "yes."

Then he pointed to himself and said, "George."

She understood, but the word was a difficult one for her to duplicate in the metallic tongue of her people. She made several attempts, until he laughingly spoke her word for "yes."

Then he pointed to other objects about the room. She gave him the names of these, but he could easily see that she felt that, if he did not know the names for all these common things, there must be something the matter with him.

He wondered how he could make her understand that there were other languages in the world than her own; and then he remembered the sharks with their hands and what he had taken to be their sign language.

Perhaps Milli at least knew of the existence of the sign language.

This would afford a parallel; for if she realized that there were two languages in the world, might there not be three?

So Abbot made some meaningless signs with his fingers. Milli quite evidently was accustomed to this kind of talk, but she was further perplexed to find that George talked gibberish with his hands as well as with his mouth.

She made some signs with her hands, and then said something orally.

Young Abbot instantly pointed to her mouth, and held up one finger; then to her hands, and held up two; then to his own mouth, and held up three, at the same time speaking a sentence of English. Instantly she caught on: there were three languages in the world. And thereafter she no longer regarded him as crazy.

For several hours she taught him. Then another meal was brought, after which she left him, and the lights went out.

He awakened feeling thoroughly rested and well. The lights were on and Milli was beside him.

He asked for his clothes. They were brought. Milli withdrew and he put them on.

After breakfast, which they ate together, one of the bearded men came and led him out through a number of winding corridors into a larger room, in which there was a closed spherical gla.s.s tank, about ten feet in diameter, containing one of the human sharks. Around the tank stood five of the bearded men.

One of them proceeded to address Abbot, but of course the young American could not make out what he was saying. This apparent lack of intelligence seemed to exasperate the man; and finally he turned toward the tank, and engaged in a sign language conference with the fish; then turned back to Abbot again and spoke to him very sternly.

But Abbot shook his head and replied, "Milli. Bring Milli."

One of the other men flashed a look of triumph at their leader, and laughed.

"Yes," he added, "bring Milli."