The mournful and desolate aspect of this lake, as well as of the shores that surround it--the eternal silence that reigns over it--the bleak, lonely appearance of its island mountain--all combine to produce upon the spectator an irresistible impression of melancholy; and a spirit of superstitious inclinings cannot help giving way to thoughts of the supernatural. No wonder that in such a place the ancient Aztec priests should have erected an altar for their sanguinary sacrifices; and so strong is tradition, that even in modern times the lake of Ostuta and the mountain of Monopostiac, are invested with supernatural attributes, and regarded by the vulgar with feelings of awe. It was to the shores of this lake that the domestic of Don Mariano de Silva had conducted his master, certain of finding there a secure resting-place for the night. He knew that the country surrounding the lake was entirely uninhabited; and the brigands of Arroyo would scarce extend their excursions to such an unprofitable foraging ground. The southern end of the lake was bordered by a strip of forest; and it was in this forest that Don Mariano had determined to make halt for the night. A small glade surrounded by trees of many species was chosen by the travellers as a place of their bivouac. The ground was covered with a carpet of soft grass, and many flowering shrubs and blossoming llianas, supported by the trees that grew around, yielded to the night an odorous incense that was wafted over the glade. It was, in fact, a bower made by the hand of nature, over which was extended the dark blue canopy of the sky, studded with its millions of scintillating stars. Don Mariano had selected this lovely spot with a design--that of distracting his daughter's spirit from the sad reflections which the more gloomy portions of the forest might otherwise have called up. Shortly after halting, Dona Gertrudis had fallen asleep in her _litera_--through the curtains of which, only half closed, might be seen her soft cheek, white almost as the pillow upon which it lay. Nature had almost repaired the outrage she had voluntarily committed on her long dark tresses; but the life within her seemed fast hastening to an end, and her breathing told how feeble was the spirit that now animated her bosom. She appeared like one of the white passion-flowers growing near, but more like one that had been plucked from the stem which had been the source of its life and sweetness. Don Mariano stood near the _litera_--gazing upon the pale face of his child with feelings of sad tenderness. He could not help calling up this very comparison--although it was torture to his soul; for he knew that the flower once plucked must irrevocably wither and die.