Septimius drew the bedclothes up about her shoulders, for she complained of being very chilly, and, carefully putting her stick within reach, went down to his own room, and resumed his studies, trying to make out from those aged hieroglyphics, to which he was now so well accustomed, what was the precise method of making the elixir of immortality. Sometimes, as men in deep thought do, he rose from his chair, and walked to and fro the four or five steps or so that conveyed him from end to end of his little room. At one of these times he chanced to look in the little looking-glass that hung between the windows, and was startled at the paleness of his face. It was quite white, indeed. Septimius was not in the least a foppish young man; careless he was in dress, though often his apparel took an unsought picturesqueness that set off his slender, agile figure, perhaps from some quality of spontaneous arrangement that he had inherited from his Indian ancestry. Yet many women might have found a charm in that dark, thoughtful face, with its hidden fire and energy, although Septimius never thought of its being handsome, and seldom looked at it. Yet now he was drawn to it by seeing how strangely white it was, and, gazing at it, he observed that since he considered it last, a very deep furrow, or corrugation, or fissure, it might almost be called, had indented his brow, rising from the commencement of his nose towards the centre of the forehead. And he knew it was his brooding thought, his fierce, hard determination, his intense concentrativeness for so many months, that had been digging that furrow; and it must prove indeed a potent specific of the life-water that would smooth that away, and restore him all the youth and elasticity that he had buried in that profound grave. But why was he so pale? He could have supposed himself startled by some ghastly thing that he had just seen; by a corpse in the next room, for instance; or else by the foreboding that one would soon be there; but yet he was conscious of no tremor in his frame, no terror in his heart; as why should there be any? Feeling his own pulse, he found the strong, regular beat that should be there. He was not ill, nor affrighted; not expectant of any pain. Then why so ghastly pale? And why, moreover, Septimius, did you listen so earnestly for any sound in Aunt Keziah's chamber? Why did you creep on tiptoe, once, twice, three times, up to the old woman's chamber, and put your ear to the keyhole, and listen breathlessly? Well; it must have been that he was subconscious that he was trying a bold experiment, and that he had taken this poor old woman to be the medium of it, in the hope, of course, that it would turn out well; yet with other views than her interest in the matter. What was the harm of that? Medical men, no doubt, are always doing so, and he was a medical man for the time. Then why was he so pale?