Should the reader suspect me of such an error, a moment's reflection will convince him that she who could--from whatever motive it might be--adopt the strange purpose to which she had devoted her solitary life, must have been characterized by energies of mind that would of necessity have filled and informed her frame, and imparted to her an air that altogether distinguished her from ordinary persons. I observed that she seemed wholly regardless of what was passing around her, appearing to be entirely absorbed in one great duty--the business of her existence--that of attending on the individual whose steps she so closely followed. He made no movement that, I thought, escaped her. Insensible, apparently, to every thing else, her glance showed that never for a moment did she cease to watch him, eager, my fancy suggested, to catch the slightest indication of his turning round and encountering her gaze. If so, her vigilance, as long as I beheld the Pair, was in vain. The man never ventured to look behind him. In half an hour they had vanished from the street. They re-appeared in the evening again as usual, and then, and for several subsequent days, (for I did not feel well enough to undergo some twenty or thirty hours' sea-sickness in the packet that offered the Saturday after my arrival,) I took a morbid and eager pleasure in awaiting the visits and observing the motions of those inscrutable beings. Sainsbury and his son were amused, but not surprised, at the anxiety I evinced to obtain a nearer insight into Maunsell's history. My curiosity and vigilance were, however, fruitless. The Pair performed their revolutions with a cold uniformity, a silent perseverance, that I found sufficiently monotonous; and at length, after one or two baffled attempts to engage the man in conversation, and which never proceeded beyond a few common-place words, (about his companion there was a something indefinable that prevented me from ever addressing _her_,) I relinquished any further hope of penetrating the mystery. Towards the close of my stay, and as my indisposition wore away, the Sainsburys complimented me by giving one or two dinner-parties, and these, with some morning visits and rambles with the men I met at the house, served to draw my attention from the matter; so that by the time I had fairly embarked on board the _Blitzen_, bound for Helvoetsluys, the circumstances which had occupied me so intently for the last fortnight were beginning to take their place among the remembrances of the past. CHAPTER III.