A faint smile seemed to pass over her face as she said this, vanishing, however, immediately into the melancholy of her usual expression. She went along Septimius's path, while he stood gazing at her till she reached the brow where it sloped towards Robert Hagburn's house; then she turned, and seemed to wave a slight farewell towards the young man, and began to descend. When her figure had entirely sunk behind the brow of the hill, Septimius slowly followed along the ridge, meaning to watch from that elevated station the course she would take; although, indeed, he would not have been surprised if he had seen nothing, no trace of her in the whole nearness or distance; in short, if she had been a freak, an illusion, of a hard-working mind that had put itself ajar by deeply brooding on abstruse matters, an illusion of eyes that he had tried too much by poring over the inscrutable manuscript, and of intellect that was mystified and bewildered by trying to grasp things that could not be grasped. A thing of witchcraft, a sort of fungus-growth out of the grave, an unsubstantiality altogether; although, certainly, she had weeded the grave with bodily fingers, at all events. Still he had so much of the hereditary mysticism of his race in him, that he might have held her supernatural, only that on reaching the brow of the hill he saw her feet approach the dwelling of Robert Hagburn's mother, who, moreover, appeared at the threshold beckoning her to come, with a motherly, hospitable air, that denoted she knew the strange girl, and recognized her as human. It did not lessen Septimius's surprise, however, to think that such a singular being was established in the neighborhood without his knowledge; considered as a real occurrence of this world, it seemed even more unaccountable than if it had been a thing of ghostology and witchcraft. Continually through the day the incident kept introducing its recollection among his thoughts and studies; continually, as he paced along his path, this form seemed to hurry along by his side on the track that she had claimed for her own, and he thought of her singular threat or promise, whichever it were to be held, that he should have a companion there in future. In the decline of the day, when he met the schoolmistress coming home from her little seminary, he snatched the first opportunity to mention the apparition of the morning, and ask Rose if she knew anything of her.