"Barbarians these people certainly are, in some ways, but they've got the arts of stone and iron working down fine. I, as an engineer, have to appreciate that, and give the remote descendants of our race credit for it, even if it works our ruin. Gad, but they're clever, though!"

Discouraged, in spite of all his attempted optimism, he sought the girl again, there in the deep and velvet dark. To himself he drew her; and, his arm about her sinuous, supple body, tried to comfort her with cheering speech.

"Well, Beatrice, they haven't got us _yet!_ We're better off, on the whole, than we had any right to hope for, after having fallen one or two hundred miles--maybe five hundred, who knows? If I can manage to get a word or two with these confounded barbarians, I'll maybe save our bacon yet! And, at worst--well, we're in a mighty good little fort here. I pity anybody that tries to come in that door and get us."

"Oh, Allan--those skeletons, those headless skeletons!" she whispered; and in his arms he felt her shudder with unconquerable fear.

"I know; but they aren't going to add _us_ to their little collection, you mark my words! These men are white; they're our own kind, even though they have slid back into barbarism. They'll listen to reason, once I get a chance at them."

Thus, talking of the abyss and of their fall--now of one phase, now another, of their frightful position--they pa.s.sed an hour in the stifling dark.

And, joining their observations and ideas, they were able to get some general idea of the conditions under which these incredible folk were dwelling.

From the warmth of the sea and the immense quant.i.ties of vapor that filled the abyss, they concluded that it must be at a tremendous depth in the earth--perhaps as far down as Stern's extreme guess of five hundred miles--and also that it must be of very large extent.

Beatrice had noted also that the water was salt. This led them to the conclusion that in some way or other, perhaps intermittently, the oceans on the surface were supplying the subterranean sea.

"If I'm not much mistaken," judged the engineer, "that tremendous maelstrom near the site of New Haven--the cataract that almost got us, just after we started out--has something very vital to do with this situation.

"In that case, and if there's a way for water to come down, why mayn't there be a way for us to climb _up?_ Who knows?"

"But if there were," she answered, "wouldn't these people have found it, in all these hundreds and hundreds of years?"

They discussed the question, pro and con, with many another that bore on the folk--this strange and inexplicable imprisonment, the huge flame at the center of the community's life, the probable intentions of their captors, and the terrifying rows of headless skeletons.

"What those mean I don't know," said Stern. "There may be human sacrifice here, and offerings of blood to some outlandish G.o.d they've invented. Or these relics may be trophies of battle with other peoples of the abyss.

"To judge from the way this place is fortified, I rather think there must be other tribes, with more or less constant warfare. The infernal fools! When the human race is all destroyed, as it is, except a few handfuls of albino survivors, to make war and kill each other! It's on a par with the old Maoris of New Zealand, who practically exterminated each other--fought till most of the tribes were wiped clean out and only a remnant was left for the British to subdue!"

"I'm more interested in what they're going to do with us now," she answered, shuddering, "than in how many or how few survive! What are we going to do, Allan? What on earth can we do now?"

He thought a moment, while the strange chant, dimly heard, rose and fell outside, always in unison with the gigantic flame. Then said he:

"Do? Nothing, for the immediate present. Nothing, except wait, and keep all the nerve and strength we can. No use in our shouting and making a row. They'd only take that as an admission of fear and weakness, just as any barbarians would. No use hammering on the iron door with our revolver-b.u.t.ts, and annoying our white brothers by interrupting their song services.

"Positively the only thing I can see to do is just to make sure both automatics are crammed full of cartridges, keep our wits about us, and plug the first man that comes in through that door with the notion of making sacrifices of us. I certainly don't hanker after martyrdom of that sort, and, by G.o.d! the savage that lays hands on you, dies inside of one second by the stop-watch!"

"I know, boy; but against so many, what are two revolvers?"

"They're everything! My guess is that a little target practice would put the fear of G.o.d into their hearts in a most extraordinary manner!"

He tried to speak lightly and to cheer the girl, but in his breast his heart lay heavy as a lump of lead.

"Suppose they _don't_ come in, what then?" suddenly resumed Beatrice.

"What if they leave us here till--"

"There, there, little girl! Don't you go borrowing any trouble! We've got enough of the real article, without manufacturing any!"

Silence again, and a long, dark, interminable waiting. In the black cell the air grew close and frightfully oppressive. Clad as they both were in fur garments suitable to outdoor life and to aeroplaning at great alt.i.tudes, they were suffering intensely from the heat.

Stern's wrists and arms, moreover, still pained considerably, for they had been very cruelly bruised with the ropes, which the barbarians had drawn tight with a force that bespoke both skill and deftness. His need of some occupation forced him to a.s.sure himself, a dozen times over, that both revolvers were completely filled. Fortunately, the captors had not known enough to rob either Beatrice or him of the cartridge-belts they wore.

How long a time pa.s.sed? One hour, two, three?

They could not tell.

But, overcome by the vitiated air and the great heat, Beatrice slept at last, her head in the man's lap. He, utterly spent, leaned his back against the wall of black and polished stone, nodding with weariness and great exhaustion.

He, too, must have dropped off into a troubled sleep, for he did not hear the unbolting of the ma.s.sive iron cell-door.

But all at once, with a quick start, he recovered consciousness. He found himself broad awake, with the girl clutching at his arm and pointing.

With dazzled eyes he stared--stared at a strange figure standing framed in a rectangle of blue and foggy light.

Even as he shouted: "Hold on, there! Get back out o' that, you!" and jerked his ugly pistol at the old man's breast--for very aged this man seemed, bent and feeble and trembling as he leaned upon an iron staff--a voice spoke dully through the half-gloom, saying:

"Peace, friends! Peace be unto you!"

Stern started up in wild amaze.

From his nerveless fingers the pistol dropped. And, as it clattered on the floor, he cried:

"English? You speak _English?_ Who _are_ you? English! English! Oh, my G.o.d!"

CHAPTER XXVII

DOOMED!

The aged man stood for a moment as though tranced at sound of the engineer's voice. Then, tapping feebly with his staff, he advanced a pace or two into the dungeon. And Stern and Beatrice--who now had sprung up, too, and was likewise staring at this singular apparition--heard once again the words:

"Peace, friends! Peace!"

Stern s.n.a.t.c.hed up the revolver and leveled it.

"Stop there!" he shouted. "Another step and I--I--"

The old man hesitated, one hand holding the staff, the other groping out vacantly in front of him, as though to touch the prisoners. Behind him, the dull blue light cast its vague glow. Stern, seeing his bald and shaking head, lean, corded hand, and trembling body wrapped in its mantle of coa.r.s.e brown stuff, could not finish the threat.

Instead, his pistol-hand dropped. He stood there for a moment as though paralyzed with utter astonishment. Outside, the chant had ceased. Through the doorway no living beings were visible--nothing but a thin and tenuous vapor, radiant in the gas-flare which droned its never-ending roar.

"In the name of Heaven, who--what--_are_ you?" cried the engineer, at length. "A man who speaks English, _here? Here?_"

The aged one nodded slowly, and once again groped out toward Stern.

Then, in his strangely hollow voice, unreal and ghostly, and with uncertain hesitation, an accent that rendered the words all but unintelligible, he made answer: