Evidently the tunnel sloped upwards very sharply, for he was standing on the brow of a precipice cut into three steps, which, taken together, may have measured some three hundred feet in height, and, so far as he could see, it was utterly impossible to descend any of these cliffs without the aid of ropes. Nor could he continue his investigations over a wide area, for about four hundred paces to the left of the opening to the subterranean passage—whereof, by the way, he was very careful to note the exact position—the mountain pushed out a snowy shoulder, with declivities so precipitous that he dared not trust himself on them.

Then he tried the right-hand side, but with no better luck, for here he was stopped by a yawning rift in the rock. Now Otter sat down and considered the situation.

The day was still young, and he knew that it would be foolish to attempt escape from the pool before dark. In front of him the mountain rose steeply till, so far as he could judge, it reached a pass which lay some two miles off, at the base of that main peak, on whose snows the priests had watched the breaking of the dawn. Part of this declivity was covered with blocks of green ice, but here and there appeared patches of earth, on which grew stunted trees, shrubs, and even grass and flowers. Being very hungry, it occurred to Otter that he might find edible roots among this scanty vegetation.

With this hope he began to climb the slope, to be rewarded in due course by the discovery of a vegetable that he recognised, for it was the same which had been offered to him on the occasion of his unlucky outbreak that had resulted in the casting away of the rubies.

With this poor food the dwarf filled himself, and having found a bough that made him an excellent staff, he continued his climb, desiring to see what there might be on the other side of the neck.

Arriving there without any great difficulty, Otter stood astonished, although he was not much given to the study of scenery. Below him lay the City of the Mist, with its shining belt of rivers that, fed from the inexhaustible mountain snows, meandered across the vast plains—now no longer hidden in mist—which they had trodden on their journey. Above his head the mighty peak towered thousands of feet into the air, till it ended in a summit shaped like a human finger pointing eternally to the heavens. Before him the scene was even stranger, made up as it was of snowy fields broken by ridges of black rock, and laid one beneath the other like white sails drying upon the slopes of a sandhill.

Gradually, as the eye travelled downward, these snow-fields grew fewer and fewer, till at last they vanished altogether, and their place was taken, first by stretches of grass-land, and finally, at the foot of the mountain, by what seemed to be a rich and level country interspersed with clumps of bush and forest trees.

The first of these patches of snow lay within five furlongs of where the dwarf stood, but several hundred feet below him.

Between the neck of the pass and this snow stretched a mighty rift or chasm, with sides so sheer that no goat could have kept a footing on them. Yet this gulf was not without its bridge, for a rock wall rose from the bottom of the chasm, forming the bed of a glacier which spanned it from side to side. In some places the wall was comparatively level and in others it showed descents sharp as those of a waterfall. This remarkable bridge of ice—that varied from a hundred paces to a few yards in width—was bordered on either side by the most fearful precipices; while, just where its fall was sheerest and its width narrowest, it seemed to spring across a space of nothingness, like the arch of a bridge thrown from bank to bank of a river. Indeed, at this point its line became so attenuated that in the glittering sunlight Otter was doubtful whether it was not broken through for a distance of some yards.

Being of an inquiring mind, the dwarf decided to satisfy himself upon the matter. All around him lay slabs of rock, some of which were worn perfectly smooth and to the thinness of a tombstone, by centuries of polishing in the iron jaws of glaciers. Selecting one of these of convenient size, Otter approached the edge of the bridge, pushing the stone before him over the frozen snow. Here the ice was perfect, except for a slight hoar-frost that covered it, for the action of the wind prevented the snow from gathering on the bridge, and whenever the sun was strong enough to melt its surface, it froze again at night, so that no slide upon a parish pond could have been more slippery or free from inequalities.