This tunnel, dimly lighted by conical air-holes made in the arched roof at regular intervals, ended in an oval hall in part excavated from the rock, and terminating in a cyclopean stone wall. Around this hall, in deep niches, were rude images carved from granite. Some of these mysterious figures, which had fallen from their pedestals, lay heaped in confusion on the ground with other shapeless rubbish, covered with grass and weeds, among which crawled lizards, spiders, and all the hideous vermin born of damp earth and ruins.
Daylight penetrated to this place only through a door opposite the mouth of the gallery. This door, viewed in a certain light, was seen to be of pointed construction, of no especial date, and evidently the work of the architect’s whim.
This door might as well have been styled a window, although it was on a level with the ground, for it opened upon a fearful precipice; and it was impossible to imagine whither a short flight of stairs which overhung the abyss could possibly lead.
The hall formed the interior of a huge turret which from a distance, seen from the other side of the precipice, looked like any high mountain peak. It stood alone, and, as has already been said, no one knew to what sort of structure it had belonged. Above it, however, upon a plateau inaccessible even to the boldest hunter, was a mass of masonry which might be taken, being so remote, either for a rounded rock or for the remains of a colossal arch. This turret and crumbling arch were known to the peasants as Arbar ruin, the origin of the name being fully as obscure as that of the buildings themselves.
On a stone in the centre of this oval hall sat a little man dressed in the skins of wild beasts, whom we have already had occasion to mention several times in the course of our story.
His back was turned to the light, or rather to the faint twilight which filtered into the gloomy turret when the sun reached high noon. This light, the strongest natural light which ever entered the tower, was not sufficient to reveal the nature of the object over which the little man was stooping. An occasional muffled groan was heard, and it seemed to proceed from this object, judging by the feeble movement which it now and then made. Sometimes the little man straightened himself, and raised to his lips a cup, by its form apparently a human skull, filled with steaming liquid of some indistinguishable hue, and drank deep draughts.