"What's the matter?" he heard Dodd demanding.

"There is no more river," said Haidia calmly. "It goes into a hole in the ground. So much I have heard from the wise men of my people. They say that it is near such a place that they fled from the flood in years gone by."

"Then we're near safety," shouted Tommy. "That river must emerge as a stream somewhere in the upper world, Dodd. I wonder where the road lies."

"There is a road here," came Haidia's calm voice. "Let us put on our sh.e.l.ls again, since who knows whether there may not be beetles here."

"Did you ever see such a girl as that?" demanded Dodd ecstatically.

"First she saves our lives, and then she thinks of everything. Good lord, she'll remember my meals, and to wind my watch for me, and--and--"

But Haidia's voice, some distance ahead, interrupted Dodd's soliloquy, and, hoisting the beetle-sh.e.l.ls upon their backs, they started along the rough trail that they could feel with their feet over the stony ground.

It was still as dark as pitch, but soon they found themselves traveling up a sunken way that was evidently a dry watercourse. And now and again Haidia's rea.s.suring voice would come from in front of them.

The road grew steeper. There could no longer be any doubt that they were ascending toward the surface of the earth. But even the weight of the beetle-sh.e.l.ls and the steepness could not account for the feeling of intense weakness that took possession of them. Time and again they stopped, panting.

"We must be very near the surface, Dodd," said Tommy. "We've surely pa.s.sed the center of gravity. That's what makes it so difficult."

"Come on," Haidia said in her quiet voice, stretching out her hand through the darkness. And for very shame they had to follow her.

On and on, hour after hour, up the steep ascent, resting only long enough to make them realize their utter fatigue. On because Haidia was leading them, and because in the belief that they were about to leave that awful land behind them their desires lent new strength to their limbs continuously.

Suddenly Haidia uttered a fearful cry. Her ears had caught what became apparent to Dodd and Jimmy several seconds later.

Far down in the hollow of the earth, increased by the echoes that came rumbling up, they heard the distant, strident rasp of the beetle swarm.

Then it was Dodd's turn to support Haidia and whisper consolation in her ears. No thought of resting now. If they were to be overwhelmed at last by the monsters, they meant to be overwhelmed in the upper air.

It was growing insufferably hot. Blasts of air, as if from a furnace, began to rush up and down past them. And the trail was growing steeper still, and slippery as gla.s.s.

"What is it, Jim?" Tommy panted, as Dodd, leaving Haidia for a moment, came back to him.

"I'd say lava," Dodd answered. "If only one could see something! I don't know how she finds her way. My impression is that we are coming out through the interior of an extinct volcano."

"But where are there volcanoes in the south polar regions?" inquired Tommy.

"There are Mount Erebus and Mount Terror, in South Victoria Land, active volcanoes discovered by Sir James Ross in 1841, and again by Borchgrevink, in 1899. If that's where we're coming out--well, Tommy, we're doomed, because it's the heart of the polar continent. We might as well turn back."

"But we won't turn back," said Tommy. "I'm d.a.m.ned if we do."

"We're d.a.m.ned if we don't," said Dodd.

"Come along please!" sang Haidia's voice high up the slope.

They struggled on. And now a faint luminosity was beginning to penetrate that infernal darkness. The rasping of the beetle-legs, too, was no longer audible. Perhaps they had thrown Bram off their track! Perhaps in the darkness he had not known which way they had gone after leaving the whirlpool!

That thought encouraged them to a last effort. They pushed their flagging limbs up, upward through an inferno of heated air. Suddenly Dodd uttered a yell and pointed upward.

"G.o.d!" e.j.a.c.u.l.a.t.ed Tommy. Then he seized Dodd in his arms and nearly crushed him. For high above them, a pin-point in the black void, they saw--a star!

They were almost at the earth's surface!

One more effort, and suddenly the ground seemed to give beneath them.

They breathed the outer air, and went sliding down a chute of sand, and stopped, half buried, at the bottom.

CHAPTER VIII

_Recaptured_

"Where are we?" each demanded of the other, as they staggered out.

It was a moonless night, and the air was chill, but they were certainly nowhere near the polar regions, for there was no trace of snow to be seen anywhere. All about them was sand, with here and there a spiny shrub standing up stiff and erect and solitary.

When they had disengaged themselves from the clinging sand they could see that they were apparently in the hollow of a vast crater, that must have been half a mile in circ.u.mference. It was low and worn down to an elevation of not more than two or three hundred feet, and evidently the volcano that had thrown it up had been extinct for millennia.

"Water!" gasped Dodd.

They looked all about them. They could see no signs of a spring anywhere, and both were parched with thirst after their terrific climb.

"We must find water, Haidia," said Tommy. "Why, what's the matter?"

Haidia was pointing upward at the starry heaven, and shivering with fear. "Eyes!" she cried. "Big beetles waiting for us up there!"

"No, no, Haidia," Dodd explained. "Those are stars. They are worlds--places where people live."

"Will you take me up there?" asked Haidia.

"No, this is our world," said Dodd. "And by and by the sun will rise, that's a big ball of fire up there. He watches over the world and gives us light and warmth. Don't be afraid. I'll take care of you."

"Haidia is not afraid with Jimmydodd to take care of her," replied the girl with dignity. "Haidia smells water--over there." She pointed across one side of the crater.

"There we'd better hurry," said Tommy, "because I can't hold out much longer."

The three scrambled over the soft sand, which sucked in their feet to the ankle at every step. It was with the greatest difficulty that they succeeded in reaching the crater's summit, low though it was. Then Dodd uttered a cry, and pointed. In front of them extended a long pool of water, with a scrubby growth around the edges.

The ground was firmer here, and they hurried toward it. Tommy was the first to reach it. He lay down on his face and drank eagerly. He had taken in a quart before he discovered that the water was saline.

At the same time Dodd uttered an exclamation of disgust. Haidia, too, after sipping a little of the fluid, had stood up, chattering excitedly in her own language.

But she was not chattering about the water. She was pointing toward the scrub. "Men there!" she cried. "Men like you and Tommy, Jimmydodd."

Tommy and Dodd looked at each other, the water already forgotten in their excitement at Haidia's information, which neither of them doubted.