But the wind fell at last, the clouds dispersed, and once more the goodly stars shone forth, and the bright Aurora. Then they ventured to creep out from their friendly shelter. The Arctic night seemed now as bright as day; they could hardly believe that the sun was not hidden behind some of those quartz-like clouds, that were still banked up on the south-eastern horizon. But where was the ship? where was their lordly _Arrandoon_? For a moment it seemed as if the ice had opened and swallowed her up. They rubbed their wondering eyes and looked again.

Three silver streaks glimmering against the dark blue of the sky represented her topmasts; all the rest of her was buried beneath the snow.

And as far as they could see seaward it was all a waste of smooth dazzling white, with here and there only the points and peaks of the icebergs appearing above it.

As soon as the snow had sunk, which it soon did many feet, McBain had got his crew ready to start for the mammoth mines. The weather had continued fine, only there were whole weeks during which the wind blew so cuttingly fierce that no work or walking either could be attempted.

The troglodytes--an expression of Rory's--were, therefore, a good deal confined to their cave, and it was well for them then that they had books to read and the wherewithal to amuse themselves in many other ways. The following is a remark that Rory had made to Ralph and Allan one day, after nearly three months of the winter had pa.s.sed away.

"Which of you troglodytes is going with me to-morrow to see the sun rise?"

"Not I, thanks," said Ralph. "Pa.s.s the ham, old man; that bit of bear-steak was a treat."

"I'll go," said Allan.

"Hurrah!" cried Rory. "It is you that's the brave boy after all. We'll have friend Seth, too, and the dogs. It's the first time they've been out; it will do us all good."

This sledging-party had been a merry one, but they were obliged to leave the dogs at the foot of the mountain, and climb, as best they could, to the top, where, sure enough, they were soon rewarded by a glimpse, just one thrilling glimpse, of the king of day. They could not refrain from shouting aloud with joy. They shouted and cheered, and though, well-nigh three miles from the cave, the troglodytes there heard it, so intense was the silence, and gave them back shout for shout and cheer for cheer.

They had seen something, though, from the hill-top that had very much astonished them. In the centre of this curious island, and entirely surrounded by mountains, was a lake of open water, as black as ink it looked in contrast with the snow-clad braeland around it, and right in the centre thereof played an enormous geyser, or natural fountain. It was evidently of volcanic origin.

The days got longer and longer, and in five months from the time they had entered the cave day and night were about equal.

But I must not omit telling you of the strange experiment that had suggested itself to McBain while gazing upwards at the birds--lured from afar--circling round the electric light. It was nothing more nor less than that of paying a visit, by means of a diving-bell and the electric light, to the denizens of the deep--the creatures that lived in the ocean under the ice.

Everything was got ready under the supervision of the aeronaut, ably a.s.sisted by the carpenter and crew and little Ap. The bell itself was an immense one, and most carefully constructed to float or sink at will.

Inside it was quite as comfortable as the room in the lift of some of our large hotels.

Ralph seldom went far out of his way in search of adventure, but this new and wonderful experiment seemed to possess an irresistible charm even for him.

As for Rory, he was, as Sandy McFlail said, "half daft" over the idea.

McBain was most careful in seeing that everything was in working order; and the bell was sunk and re-sunk empty a dozen times in the water before he would allow any one to venture down in it. The snow had been previously cleared away all from and around the ship, and an immense ice-hole made for the purpose of conducting the experiment.

When all seemed safe, and it was found that the bell, sunk to a depth of forty feet, was acted on by no current, but rose straight to the surface of the ice-hole when wanted, then the captain himself and De Vere ventured down. They remained beneath for fully twenty minutes--and anxious minutes they were to those on the surface; then the signal to hoist was given, and presently up bobbed the bell, and was raised to the level by the derrick, when out stepped De Vere and McBain.

"Smiling all over, sure!" said Rory, "and looking as clean and sweet and pretty as if they'd just popped out of a band-box."

The diving-bell was called "the band-box" after this.

But it was after dark that the real experiment was to take place.

"Troth!" said Rory at dinner that day, "will you fellows never have done eating? It's myself that is longing to get away down to the bottom of the sea."

The four of them entered the band-box--Allan, Ralph, the doctor, and Rory; then they were slowly lowered down--down--down amid a darkness that could be felt. But presently a green glimmer of light shone in through the strong window of the bell; they could see each other's faces. The light got stronger and stronger as the electric ball came nearer and nearer, till at last it stopped stationary about twelve yards from their window, making the sea all round, beneath, and above it as bright as noon.

"Yonder is the stage, boys," cried Rory; "but where are the performers?"

They had not long to wait for these. Fish, first of the smaller kinds, came sailing round the light; presently these fled in all directions, and a monster shark took up the room. He soon had company, for dozens of others came floating around, and not sharks only, but creatures of more hideous forms than anything even Rory could have imagined in his wildest dreams.

"Oh!" cried the young poet, "if Gustave Dore were only here to see this terrible sight!"

"It beats," said Sandy, "the Brighton Aquarium all to pieces. Oh?" he screamed, shrinking into a corner of the band-box, as a huge hammer-headed shark sidled up to the window, crooked his awful eyes, and stared in. "Oh, Rory, man, signal quick! I want to get up out o' here.

No more divin'-bells for me, lad."

For nearly six weeks it became the regular custom to visit this submarine vivarium every night after dinner.

"It was just as good," Ralph and Allan said, "as going to a show."

"And a deal better," added Rory. Even the mates and the crew begged for a peep at the wonders displayed in the depths of the illuminated sea.

"Well," said Ted Wilson, when he ascended after his first view, "I'm a sadder and a wiser man, and I'll dream of what I've seen this night as long as ever I live."

They found the mouth of the mammoth cave, near which lay all that was mortal of poor old Magnus and his son, after days and days of digging; but when at long last they succeeded in forcing an entrance, one glance around them proved that they had indeed fallen upon riches and wealth untold. Those vast tusks and teeth of the mighty monsters of an age long past and gone were of the purest ivory, more white and hard than any they had ever seen before.

"Why, sure," said Rory, "the cave of Aladdin was nothing to this!"

"The next thing, gentlemen," said the captain, "is to transport our treasure to the good ship _Arrandoon_. Seth, old friend, your dogs will be wanted now in good earnest."

"I reckon," replied Seth, "they're all ready, sir, and just mad enough to eat each other's collars, 'cause they don't get anything to do."

What a change it was to have sunshine and a comparative degree of warmth again. Rough and toilsome enough was the road between the ship and the mammoth cave, but the snow was crisp and hard. The dogs were wild with delight, and so were our heroes, and so hard did everybody work all day that no one thought any more about the diving-bell and the denizens of the deep. After dinner they needed rest. Rory took his boat, or canoe, with him once or twice, and, all alone, he embarked on the volcanic lake and paddled round the geyser.

In three weeks from the day they had found the entrance to the cave they had transported all the ivory to the _Arrandoon_. They were now what Silas would have called a "b.u.mper ship." If they should succeed in regaining their own country, Rory would be able to live all his days in peace and comfort, independent of the whims of his Irish tenantry, and Allan--ah, yes, poor Allan!--began to dream of home now. Already, in imagination, he saw Glentruim a fair and smiling valley, every acre of it tilled, comfortable cottages sending their blue smoke heavenwards from the green birchen woods, a new and beautiful church, and the castle restored, himself once more resuming his rights of chief of his clan, and his dear mother and sister honoured and respected by all.

"I'll roast an ox whole, boys!" he cried, one evening, jumping up from the sofa in the snuggery, where he had been lying thinking and dreaming of the future. "A whole ox; nothing less!"

Rory and Ralph burst out laughing.

"A vera judeecious arrangement!" cried Sandy. "But where will ye get the ox? I'm getting tired o' bear-beef, and wouldn't mind a slice out of a juicy stot's rump."

"Oh, dear!" said Allan, smiling; "I forgot you hadn't been following the train of my thoughts. I was back again in Arrandoon."

"Hurrah!" cried Rory. "Gather round the fire, boys; sit in, captain; sit in, Sandy; let us talk about home and what we all will do when we get there."

Little, little did they know then the hardships that were in store for them.

Summer had fairly set in, but as yet there were not the slightest signs of the ice breaking up. Several balloon flights were made, the aeronaut always making most careful calculations for days before starting, and generally succeeding in catching a favourable time.

Then the princ.i.p.al adventure of the whole cruise was undertaken--a great sledging journey towards the Pole itself.

The sledges, specially prepared for the purpose, were got out and carefully loaded with everything that would be found necessary.

For a time the _Arrandoon_ was to be left with but a few hands, or "ship-keepers," as they are called, on her.

The great snowstorm of the previous winter McBain judged, and rightly too, would be in favour of the expedition; it smoothed the roughness of the ice, and made sledging even pleasurable. De Vere had two sledges, devoted to carrying his balloon and the means wherewith to inflate it.

Ted Wilson was left in charge of the ship, with little Ap, the cook, and carpenter's crew, to say nothing of little Freezing Powders and c.o.c.kie.

"If you do find the North Pole," cried Ted Wilson, as a parting salutation to one of his companions, "do fair Johnick, Bill, fair Johnick--bring us a bit."