At this she laid a warning finger on her lip and began to withdraw. Her beauty underwent a visible alteration that made him shudder, he knew not why, for still she was beautiful. The landscape was darkened by a giant shadow sweeping across the valley with the speed of a vulture. In the obscurity the maiden's figure grew dim and indistinct and her voice seemed to come from a distance, as she said, in a tone of sorrowful reproach: "Presumptuous and ungrateful youth! must I then so soon leave thee? Would nothing do but thou must at once break the eternal compact?"