We went up the Brenta one day as far as Oliero, to visit the famous cavern already mentioned, out of which, from the secret heart of the hill, gushes one of the foamy affluents of the river. It is reached by passing through a paper-mill, fed by the stream, and then through a sort of ante-grot, whence stepping-stones are laid in the brawling current through a succession of natural compartments with dome-like roofs. From the hill overhead hang stalactites of all grotesque and fairy shapes, and the rock underfoot is embroidered with fantastic designs wrought by the water in the silence and darkness of the endless night. At a considerable distance from the mouth of the cavern is a wide lake, with a boat upon it, and voyaging to the centre of the pool your attention is drawn to the dome above you, which contracts into a shaft rising upward to a height as yet unmeasured and even unpierced by light. From somewhere in its mysterious ascent, an auroral boy, with a tallow candle, produces a so-called effect of sunrise, and sheds a sad, disheartening radiance on the lake and the cavern sides, which is to sunlight about as the blind creatures of subterranean waters are to those of waves that laugh and dance above ground. But all caverns are much alike in their depressing and gloomy influences, and since there is so great opportunity to be wretched on the surface of the earth, why do people visit them? I do not know that this is more dispiriting or its stream more Stygian than another.
The wicked memory of the Ecelini survives everywhere in this part of Italy, and near the entrance of the Oliero grotto is a hollow in the hill something like the apsis of a church, which is popularly believed to have been the hiding-place of Cecilia da Baone, one of the many unhappy wives of one of the many miserable members of the Ecelino family. It is not quite clear when Cecilia should have employed this as a place of refuge, and it is certain that she was not the wife of Ecelino da Romano, as the neighbors believe at Oliero, but of Ecelino il Monaco, his father; yet since her name is associated with the grot, let us have her story, which is curiously illustrative of