But the Doctor was too busy hurrying the mechanics in their repairs to heed the words of the excited engineer.

Finally the forge was ready and as by the Arctic moonlight a black smoke rose higher and higher above the cliffs, and a fire blazed a thousand times larger and hotter than that black sh.o.r.e had ever known, the natives appeared to grow more and more certain that these men who came up from the depths of the sea were, indeed, the spirits of all the dead whales that they and their forefathers before them had killed. They looked on in silent awe.

It was with the greatest difficulty that Jarvis succeeded in finding one of them who was able to speak the Chukche language of Behring Strait, a language that was understood by Azazruk, the Eskimo. When, at last, he did find a man who knew Chukche and who was not too frightened to talk, he plied him with many questions.

"Who were the three strange-appearing natives who had attacked him and his companion in the jail? Where did they come from? What were they doing here? How did they happen to have such a strange jail? How did they chance to have a jail at all? Where did the gold come from that had been used to inlay the ivory? Was there much of it to be found?"

These, and many other questions, the engineer put to the trembling native, while, with one eye, he watched the operations of the mechanics who labored by the fire.

The man did not know the exact place from which the three strangers had come; it was somewhere far South, known as Ki-yek-tuk. The three had been a long time in the village and had inspired all the people with a great dread by telling them of a giant race who wore fierce beards like the walrus; who killed with a great noise at long distances, and who would break any jail except one of ivory. They had said that probably one or two of these fierce men would come at first, and, perhaps, if these were made prisoners, no others would follow. Hence the jail. And hence, too, the imprisonment of Dave and Jarvis. The natives had felt sure that they were the advance guard of these wicked, cruel men who had come to rob and kill. But now, of course, they knew they were spirits of dead whales, and would do them no harm.

As for the tusks with the inlaid gold, the man said they had been traded for by a very old man who had made a journey with a reindeer, ten nights and days from their village, due west. There, beside a great river, he had found a numerous people, who lived in houses of logs, very large and warm. He said, too, that these people had great quant.i.ties of this yellow metal. Their houses were decorated with it; their fur garments glistened with it; their council house was encrusted with it.

"But," he added at the end, "the metal was too soft for spear points and arrowheads, too heavy for garments, and not good for food. As for houses, did they not have their deerskins and walrus-pelts? So the old man never went back for more."

Dave had been sitting by the old engineer as he secured this information bit by bit through the interpreter. His eyes sparkled with excitement when he spoke.

"Well," he asked, when the native had finished, "what do you make of it?"

"Make of it?" exclaimed the old man. "It's plain as the nose on your face. H'as h'I see it, there's gold in this land just h'as h'I said before, plenty of it. H'and this 'ere tribe, way west there some'ers; they's been driven there by the Roosians, er by other tribes. Mayhaps they's Roosian h'exiles themselves. Mayhaps they's one of the seven lost tribes of h'Israel, what you read of in the Book. 'Owever that may be, it's there, and h'I 'ates to think 'ow rich you h'and h'I'd be h'if h'it wasn't fer this 'ere crazy Doctor's achin' to see th' Pole."

"Jarvis," Dave leaned forward eagerly, "we'll take the Doctor to the Pole, then we'll hire a submarine or a schooner and work our way back here."

"We will that, me lad," said the old man, gripping the boy's hand. "But then," he added more soberly, "maybe it won't be a bit o' use. Maybe the j.a.ps will get it first."

"The j.a.ps."

"Sure! The j.a.ps. Ar' ye that blind? Don't ye know all the time the three rascals we well-nigh killed was j.a.ps? Can't ye see 'ow they don't want the h'Americans or th' Roosians to git t' the treasure of this peninsula?

Can't ye see 'ow bloomin' easy h'it'd be for 'em to put two or three spies in h'every bloomin' native village on the whole Roosian coast, and take the entire peninsula fer th' j.a.p Kaiser, or whatever they call 'im?

Can't ye see 'ow th' thing'd work?"

Dave sat a long time in thought. At last he decided what to do.

"Perhaps you're right, Jarvis," he said finally, rising. "But our first job is the Pole. The shaft must be nearly fitted by now. Let's see how they're coming. Perhaps we'll be away in the morning."

As they rounded a block of ice by the sh.o.r.e, Jarvis gave a start and seized his companion by the arm.

"D'y' see 'im?" he whispered "'E was starin' h'at us from behint them ice-piles. 'E was a j.a.p. I'll swear it."

"Aw, you're seeing j.a.ps to-night," laughed Dave.

"Ow is she?" Jarvis asked of a gob whom they met.

"Right as they make 'em--now. But I'll say it was some job that. The shaft was twisted something awful--like a corkscrew. But it was some steel, that shaft, and we just het her up an' twisted her straight again.

The Doc said he guessed it would be a bit short, but when we got her back in place she fitted like paint. Then we slid the old boat back in the water and tried her out and she runs like a watch."

"Grand. We're off in the mornin'."

Dave and Jarvis turned to make their way to the submarine where a single gob, pacing the white ice-surface, had laughed at his job of watching natives who could not be induced to come within a half-mile of him.

Suddenly the engineer jumped forward.

"Did y' see that?" Jarvis grabbed Dave by the arm and urged him into a run. "'E went down--the guard, I saw 'im," panted Jarvis. "I saw 'im, then h'I didn't. H'it's the j.a.ps. Listen!"

There came distinctly the sound of a dragging hawser.

"H'it's the j.a.ps; the blooming b.l.o.o.d.y 'eathen," Jarvis panted. "They're h'after the submarine!"

Dave dragged him behind an ice-covered boulder.

"Quick!" he whispered. "If the submarine goes, we go with her, inside or outside, somewhere. We've got to take the chance."

Darting from ice-pile to ice-pile, they soon reached the water's edge.

There lay the guard, unconscious, an ugly bruise on the side of his head.

And there lay the submarine, silent and closed.

"She's off!" breathed the engineer.

It was true. The craft already showed a line of dark water between her and the sh.o.r.e.

Without hesitation, the old engineer sprang upon her deck and crouched by the conning-tower. Instantly Dave followed him. Their soft skin-boots made no sound. And, as they crouched there, the submarine headed for the channel and then toward the west.

"To the treasure city, h'I'll be bound," whispered Jarvis.

CHAPTER XI

A BATTLE BENEATH THE ARCTIC MOON

"THE TREASURE CITY"

"We'll stick 'ere behint th' connin'-tower," the engineer explained to Dave, as the submarine, turning, put off up the dark channel which separated the solid sh.o.r.e-ice from the great drift of ice-floe that lay beyond.

"If they submerge," suggested Dave, "we'll have a slim chance."

"H'I doubt if they understant that much," mumbled the engineer between chattering teeth. "H'anyway, right 'ere's where h'I stick, h'and once th'

bloomin' 'eathen show a 'ead above the 'atchway, h'I 'ates t' think what'll 'appen to 'im."

"Perhaps the channel will close in and drive them ash.o.r.e," suggested Dave hopefully, as he drew his mackinaw more closely about him and crouched nearer to the conning-tower, that he might avoid the cutting air and icy spray which reached him from the prow of the submarine.

"Mayhap," mumbled the engineer, snuggling close.

But the channel did not close. Also, the submarine did not submerge; it plowed straight on through the dark waters of the channel.

Night pa.s.sed and the pale Arctic sun revealed the two figures huddling, half-frozen, behind the conning-tower. Daylight brought little comfort, serving only to remind them that they had no coffee for breakfast; indeed, had no breakfast at all. This set the engineer to muttering threats against the stranger who had stolen the submarine, and caused him for the hundredth time to remark: