wrapping around the bathysphere.

Two more of the harnessed sea-serpents swam into view, and these two were hitched to a flat cart: an actual cart with wheels. The chains were attached to the harness of the original two beasts; they swam upward and disappeared from view; and the sphere slowly rose from the mucky bottom of the sea, to be lowered again squarely on top of the cart. The cart jerked forward, and a journey over the ocean floor began.

Then the little pocket torch dimmed to a dull red glow, and the scene outside faded gradually from view. Abbot switched off the now useless light and set to work with scientific precision to record all these unbelievable events.

In his interest and excitement, he had forgotten the ever-increasing cold; but gradually, as he wrote, the frigidity of his surroundings was forced on his consciousness. He turned on more oxygen, and exercised frantically. Meanwhile the cart, carrying his bathysphere, bumped along over an uneven road.

From time to time, he tried his almost exhausted little light, but its dim red beam was completely absorbed by the blue of the ocean depths, and he could make out nothing except two bulking indistinct shapes, writhing on ahead of him. Finally even this degree of visibility failed, and he could see absolutely nothing outside.

He was now so chilled and numb that he could no longer write. With a last effort, he noted down that fact, and then put the book away in its rack.

He began to feel drowsy. Rousing himself, he turned on more oxygen. The effect was exhilaration and a feeling of silly joy. He began to babble drunkenly to himself. His head swam. His mind was in a daze.

t seemed hours later when he awoke. Ahead of him in the distance there was a dim pale-blue light, against which there could be seen, in silhouette, the forms of the two serpentine steeds and their fish-like drivers. Abbot's hands and feet were completely numb, but his head was clear.

As they drew nearer to the light, it gradually took form, until it turned out to be the mouth of a cave. The cart entered it.

Down a long tunnel they progressed, the light getting brighter and brighter as they advanced. The color of the light became a golden green. The rough stone walls of the tunnel could now be seen; and finally there appeared, ahead, two semicircular doors, swung back against the sides of the passage.

Beyond these doors, the tunnel walls were smooth and exactly cylindrical, and on the ceiling there were many luminous tubes, which lit up the place as brightly as daylight. The cart came to a stop.

The young scientist could now see with surprising distinctness his captors and their serpentine steeds, and even the details of the chains and the harness. He tried to pick up his diary, so as to jot down some points which he had theretofore missed; but his hands were too numb. But at least he could keep on observing; so he glued his eyes to the thick quartz window-pane once more.

A short distance ahead in the passage there was another pair of doors. Presently these swung open and the cavalcade moved forward. Five or six successive pairs of doors were passed in this manner, and then the sea-serpents began to thrash about and become almost unmanageable. It was evident that some change not to their liking had taken place in their surroundings.

t last, as one of the portals swung open, young Abbot saw what appeared to be four deep-sea diving-suits. Could these suits contain human beings? And if so, who? It seemed incredible, for no diving-suit had ever been devised in which a man could descend to the depth of one mile, and live.

These four figures, whatever they were, came stolidly forward and took charge of the cart. One of the sharks swam up to them and appeared to talk to them with its hands. Then the sharks unhitched the two sea-serpents and led them to the rear, and Abbot saw them no more.

The four divers picked up the chains, and slowly towed the cart forward, their clumsy, ponderous movements contrasting markedly with the swift and sure swishings which had characterized the man-sharks and their snake-like steeds.

Several more pairs of doors were passed, and then there met them four figures in less cumbersome diving-suits, like those ordinarily used by men just below the surface of the sea. One of the deep-sea divers then pressed his face close to the outside of one of the windows of the bathysphere, as though to take a look inside; but the four newcomers waved him away, and hurriedly picked up the chains. Nevertheless, in that brief instant, Abbot had seen within the head-piece of the diver what appeared to be a bearded human face.

Several more pairs of doors were passed. The four deep-sea divers floundered along beside the cart, quite evidently having more and more difficulty of locomotion as each successive doorway was passed, until finally they lay down and were left behind.

At last the procession entered a section of tunnel which was square, instead of circular, and in which there was a wide shelf along one side about three feet above the floor. The four divers then dropped the chains, and one by one took a look at Abbot through his window.

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

They had unmistakable human faces!

e 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.

hese 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