Had they possessed a blanket among them they could have spread it upon the ice, lain down upon it, and, wrapping it as best they could, passed the night with a fair degree of comfort. That, however, was out of the question. They, therefore, seated themselves under the lee, as may be said of the mass of ice, which protected them against the gale, their bodies pressed as closely together as well could be, and in this sitting posture prepared to go to sleep, if it should so prove that the blessing could be won.

One can become accustomed to almost anything. An abrupt change from the comfortable cabin of the "Nautilus" to the bleak situation on the iceberg would have filled them with a dread hardly less trying than death itself; but they had already been in the situation long enough to grow used to it. The ponderous swaying of the frozen structure, the thunderous dash and roar of the waves against its base, the screaming of the gale and the darkness of the arctic night; all these were sounds and sensations which in a certain sense grew familiar to them and did not disturb them as the hours passed.

It cannot be said that an icy seat or rest forms the most comfortable support for the body, whose warmth is likely to melt the frozen surface, but the thick clothing of the party did much to avert unpleasant consequences. Had Jack or Rob or Fred been alone, the penetrating cold most likely would have overcome him, but as has been shown, the mutual warmth rendered their situation less trying than would be supposed.

When an hour had passed, with only an occasional word spoken, Jack addressed each of the boys in turn by name. There was no response, and he spoke in a louder tone with the same result.

"They're asleep," he said to himself, "and I'm glad of it, though the sleep that sometimes comes to a chap in these parts at such times is the kind that doesn't know any waking in this world. I've no doubt, howsumever, that they're all right."

With a vague uneasiness, natural under the circumstances, he passed his hands over their faces and pinched their arms, as if to assure himself there was no mistake.

The boys were so muffled up in their thick coats and sealskin caps that were drawn about their ears, behind which the collars of their coats were raised, that only the ends of their noses and a slight portion of their cheeks could be felt. He removed his heavy mitten from one hand, and, reaching under the protecting covering about the cheeks and neck, found a healthy glow which told him all was well, and, for the time at least, he need feel no further anxiety, so far as they were concerned.

"Which being the case," he added, drawing on his mitten again, and making sure their coverings were adjusted, "I'll take a little trip myself into the land of nod."

But this trip was easier thought of than made. His rugged body, with its powerful vitality, would have soon succumbed to drowsiness, could his mind have been free of its distressing fear for the two young friends under his charge. But, though he had said little, he knew far more than he dare tell them. He had shown his alarm on discovering the loss of the boat, but though some impatient expressions escaped him, he did not explain what was in his mind.

His belief was that before morning should come the "Nautilus" would be driven so far from her course that she would be nowhere in sight, and, towering as was the iceberg in its height and proportions, it would be invisible from the deck of the ship, or, if visible, could not be identified among the others drifting through the icy ocean. Well aware, too, he was of the terrific strength of the gale sweeping across the deep, he trembled for the safety of the "Nautilus" and those on board, hardly less than he did for himself and friends. The hurricane was resistless in its power, and would drive the ship whither it chose like a cockle-shell. Icebergs were moving hither and thither through the darkness, less affected by the wind and waves than the vessel, and a collision was among the possibilities, if not the probabilities.