'Indeed I must,' answered Bertram; 'but you see I am safely guarded. Adieu for a short time; go home as fast as you can.' He pressed his sister's hand, and took a yet more affectionate farewell of Julia with his eyes. Almost stupefied with surprise and fear, the young ladies watched with anxious looks the course of Bertram, his companion, and their extraordinary guide. Her tall figure moved across the wintry heath with steps so swift, so long, and so steady that she appeared rather to glide than to walk. Bertram and Dinmont, both tall men, apparently scarce equalled her in height, owing to her longer dress and high head-gear. She proceeded straight across the common, without turning aside to the winding path by which passengers avoided the inequalities and little rills that traversed it in different directions. Thus the diminishing figures often disappeared from the eye, as they dived into such broken ground, and again ascended to sight when they were past the hollow. There was something frightful and unearthly, as it were, in the rapid and undeviating course which she pursued, undeterred by any of the impediments which usually incline a traveller from the direct path. Her way was as straight, and nearly as swift, as that of a bird through the air. At length they reached those thickets of natural wood which extended from the skirts of the common towards the glades and brook of Derncleugh, and were there lost to the view. 'This is very extraordinary,' said Lucy after a pause, and turning round to her companion; 'what can he have to do with that old hag?' 'It is very frightful,' answered Julia, 'and almost reminds me of the tales of sorceresses, witches, and evil genii which I have heard in India. They believe there in a fascination of the eye by which those who possess it control the will and dictate the motions of their victims. What can your brother have in common with that fearful woman that he should leave us, obviously against his will, to attend to her commands?' 'At least,' said Lucy, 'we may hold him safe from harm; for she would never have summoned that faithful creature Dinmont, of whose strength, courage, and steadiness Henry said so much, to attend upon an expedition where she projected evil to the person of his friend. And now let us go back to the house till the Colonel returns. Perhaps Bertram may be back first; at any rate, the Colonel will judge what is to be done.'