The leader scowled at him, and some words were interchanged, but it ended in Milli being sent for. She apparently explained the situation to the satisfaction of the fish, to the intense glee of the man who had sent for her, and to the rather complete discomfiture of the leader of the five.

Abbot later learned that the leader's name was Thig, and that the name of the gleeful man was Dolf.

The reception over, Milli led Abbot back to his room.

There ensued many days--very pleasant days--of language instruction from Milli. Dolf and Thig and others of the five came frequently, to note his progress and to talk with him and ask him questions.

A sitting room was provided for him, adjoining his sleeping quarters.

Milli occupied quarters nearby.

Within a week he had mastered enough of the language of these people, for their strange history began to be intelligible to him.

In spite of the fact that the air here was at merely atmospheric pressure, nevertheless this place was one mile beneath the surface of the Pacific. Milli and her people lived in a city hollowed out of a reef of rocks, reinforced against the terrific weight of the water and filled with laboratory-made air. They had never been to the surface of the sea.

The fish with the human arms were their creators and their masters.

Professor Osborne had been right. The fish of the deep, having a head start on the rest of the world, had evolved to a perfectly unbelievable degree of intelligence. Centuries ago they had built for themselves the exact a.n.a.log of George Abbot's bathysphere, and in it they had made much the same sort of exploring trips to the surface that he had made down into the deeps. But their spheres had been constructed to keep in, rather than to keep out, great pressure.

Their scientists had gathered a wealth of data as to conditions on the surface, and had even seen and studied human beings. But their insatiable scientific curiosity had led them to want to know more about the strange country above them and the strange persons who inhabited it. And so they set about breeding, in their own laboratories, creatures which should be as like as possible to those whom they had observed on the surface.

Of course, this experiment necessitated their first setting up an air-filled partial vacuum similar to that which surrounds the earth.

But they had persisted. They had brought down samples of air from the surface of the sea, and had a.n.a.lyzed and duplicated it on a large scale.

Finally, through long years, they had so directed--and controlled the course of evolution, in their breederies, as first to be able to produce creatures which could live in air at low pressures, and then to evolve the descendants of those creatures into intelligent human beings.

Some of the lower types of this evolutionary process, both in the direct line of descent of man, and among the collateral offshoots, had been retained for food and other purposes. Abbot, with intense scientific interest, studied these specimens in the zoo of the underwater city where he was staying.

Plans had been in progress for some time, among the fish-folk and their human subjects, to send an expedition to the surface. And now the shark masters had fortunately been able to secure alive an actual specimen of the surface folk--namely, George Abbot. The expedition was accordingly postponed until they could pump out of the young scientist all the information possible.

Abbot was naturally overjoyed at the prospect. This would not only get him out of here--but think what it would mean to science!

The plans of the sharks were entirely peaceful. Furthermore there were only about two hundred of their laboratory-bred synthetic human beings, and so these could const.i.tute no menace to mankind.

Accordingly he enthusiastically a.s.sured them that they could depend upon the hearty cooperation of the scientists of the outer earth.

During all his stay so far in this cave city, Abbot had been permitted to come in contact only with Milli, the members of the Committee of Five, and an occasional guard or laboratory a.s.sistant. Yet, in spite of the absence of personal contacts with other members of this strange race, Abbot was constantly aware of a background of many people and tense activity, which kept the wheels of industry and domestic economy turning in this undersea city.

Although the young man readily accustomed himself to the speech and food and customs of this strange race, his personal modesty and neatness revolted at the loin-cloths and beards of the men; and so, by special dispensation, he was permitted to wear his sailor suit and to shave.

The Committee of Five, who const.i.tuted a sort of ruling body for the city, interviewed him at length, cross-examined him most skilfully and took copious notes. But there seemed to be a strange lack of common meeting ground between their minds and his, so that very often they were forced to call on Milli to act as an intermediary. The beautiful young girl seemed able to understand both George Abbot and the leaders of her own people with equal facility.

A number of specially constructed submarines had already been built to carry the expedition to the surface. Before it came time to use them, Abbot tried to paint as glowing a picture as possible of life on earth; but he found it necessary to gloss over a great many things.

How could he explain and justify war, liquor, crime, poverty, graft, and the other evils to which constant acquaintance has rendered the human race so calloused?

He was unable to deceive the men of the deep. With their super-intelligence, they relentlessly unearthed from him all the salient facts. And, as a result of their discoveries, their initial friendly feeling for the world of men rapidly developed into supreme contempt.

But Abbot on the other hand developed a deep respect for them. Their chemistry and their electrical and mechanical devices amazed and astounded him. They even were able to keep sun-time and tell the seasons, by means of gyroscopes!

Age was measured much as it is on the surface. This fact was brought to Abbot's attention by the approach of Milli's twentieth birthday.

Strange to relate, she seemed to dread the approach of that anniversary, and finally told Abbot the reason.

"It is the custom," said she, "when a girl or a boy reaches twenty, to give a very rigorous intelligence test. In fact, such a test is given on every birthday, but the one on the twentieth is the hardest. So far, I have just barely pa.s.sed each test, which fact marks me as of very low mentality indeed. And, if I fail _this_ time, they will kill me, so as to make room for others who have a better right to live."

"Impossible!" exclaimed the young man indignantly. "Why, you have a better mind than those of many of the leading scientists of the outer world!"

"All the same," she gloomily replied, "it is way below standard for down here."

On the day of the test, he did his best to cheer her up. Dolf also came--she seemed to be an especial protege of his--and gave her his encouragement. He had been coaching her heavily for the examinations for some time previous.

But later in the day she returned in tears to report to Abbot that she had failed, and had only twenty-four hours to live. Before he realized what he was doing, Abbot had seized her in his arms, and was pouring out to her a love which up to that moment he had not realized existed.

Finally her sobbing ceased, and she smiled through her tears.

"George, dear," said she, "it is worth dying, to know that you care for me like this."

"I won't let them kill you!" a.s.serted the young man belligerently.

"They owe me something for the a.s.sistance which I am to give them on their expedition. I shall demand your life as the price of my cooperation. Besides, you are the only one of all your people who has brains enough to understand what I tell them about the outer earth. It is they who are weak-minded; not you!"

But she sadly shook her head.

"It would never do for you to sponsor me," said she, "for it would alienate my one friend in power, Dolf. He loves me; no, don't scowl, for I do not love him. But, for the safety of both of us, we must not let him know of our love--yet."

"'Yet'?" exclaimed Abbot, "when you have less than a day to live?"

"You have given me hope," the girl replied, "and also an idea. Dolf promised to appeal to the other members of the Five. I have just thought of a good ground for his appeal; namely, my ability to translate your clumsy description into a form suited to the high intelligence of our superiors."

"'Clumsy'?" exclaimed the young man, a bit nettled.

"Oh, pardon me, dear. I'm so sorry," said she contritely. "I didn't mean to let it slip. And now I must rush to Dolf and tell him my idea."

"Don't let him make love to you, though!" admonished Abbot gloomily.

She kissed him lightly, and fled.

A half hour later she was back, all smiles. The idea had gone across big. Dolf, as the leader of the projected expedition, had demanded that Milli be brought along as liaison officer between them and their guide; and the other four committeemen had reluctantly acceded. The execution was accordingly indefinitely postponed.