All this while Hester had been looking steadily at the old man, and was shocked, as well as wonder-smitten, to discern what a change had been wrought upon him within the past seven years. It was not so much that he had grown older; for though the traces of advancing life were visible he bore his age well, and seemed to retain a wiry vigour and alertness. But the former aspect of an intellectual and studious man, calm and quiet, which was what she best remembered in him, had altogether vanished, and been succeeded by an eager, searching, almost fierce, yet carefully guarded look. It seemed to be his wish and purpose to mask this expression with a smile, but the latter played him false, and flickered over his visage so derisively that the spectator could see his blackness all the better for it. Ever and anon, too, there came a glare of red light out of his eyes, as if the old man's soul were on fire and kept on smouldering duskily within his breast, until by some casual puff of passion it was blown into a momentary flame. This he repressed as speedily as possible, and strove to look as if nothing of the kind had happened.

     In a word, old Roger Chillingworth was a striking evidence of man's faculty of transforming himself into a devil, if he will only, for a reasonable space of time, undertake a devil's office. This unhappy person had effected such a transformation by devoting himself for seven years to the constant analysis of a heart full of torture, and deriving his enjoyment thence, and adding fuel to those fiery tortures which he analysed and gloated over.

     The scarlet letter burned on Hester Prynne's bosom. Here was another ruin, the responsibility of which came partly home to her.

     "What see you in my face," asked the physician, "that you look at it so earnestly?"