The whole night was spent in speculating, with gloomy forebodings, upon the chances of the future. The temperature of the hall, now entirely exposed to the outer air, was rapidly falling, and would quickly become unendurable. Far too intense was the cold to allow anyone to remain at the opening, and the moisture on the walls soon resolved itself into icicles. But the mountain was like the body of a dying man, that retains awhile a certain amount of heat at the heart after the extremities have become cold and dead. In the more interior galleries there was still a certain degree of warmth, and hither Servadac and his companions were glad enough to retreat. Here they found the professor, who, startled by the sudden cold, had been fain to make a precipitate retreat from his observatory. Now would have been the opportunity to demand of the enthusiast whether he would like to prolong his residence indefinitely upon his little comet. It is very likely that he would have declared himself ready to put up with any amount of discomfort to be able to gratify his love of investigation; but all were far too disheartened and distressed to care to banter him upon the subject on which he was so sensitive. Next morning, Servadac thus addressed his people. “My friends, except from cold, we have nothing to fear. Our provisions are ample--more than enough for the remaining period of our sojourn in this lone world of ours; our preserved meat is already cooked; we shall be able to dispense with all fuel for cooking purposes. All that we require is warmth--warmth for ourselves; let us secure that, and all may be well. Now, I do not entertain a doubt but that the warmth we require is resident in the bowels of this mountain on which we are living; to the depth of those bowels we must penetrate; there we shall obtain the warmth which is indispensable to our very existence.” His tone, quite as much as his words, restored confidence to many of his people, who were already yielding to a feeling of despair. The count and the lieutenant fervently, but silently, grasped his hand. “Nina,” said the captain, “you will not be afraid to go down to the lower depths of the mountain, will you?” “Not if Pablo goes,” replied the child. “Oh yes, of course, Pablo will go. You are not afraid to go, are you, Pablo?” he said, addressing the boy. “Anywhere with you, your Excellency,” was the boy’s prompt reply. And certain it was that no time must be lost in penetrating below the heart of the volcano; already the most protected of the many ramifications of Nina’s Hive were being pervaded by a cold that was insufferable. It was an acknowledged impossibility to get access to the crater by the exterior declivities of the mountain-side; they were far too steep and too slippery to afford a foothold. It must of necessity be entered from the interior.