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?"

"Something that would make me weep, if there were any tears bitter enough for it," answered she. "But let it pass! It is of yonder miserable man that I would speak."

"And what of him?" cried Roger Chillingworth, eagerly, as if he loved the topic, and were glad of an opportunity to discuss it with the only person of whom he could make a confidant. "Not to hide the truth, Mistress Hester, my thoughts happen just now to be busy with the gentleman. So speak freely and I will make answer."

"When we last spake together," said Hester, "now seven years ago, it was your pleasure to extort a promise of secrecy as touching the former relation betwixt yourself and me. As the life and good fame of yonder man were in your hands there seemed no choice to me, save to be silent in accordance with your behest. Yet it was not without heavy misgivings that I thus bound myself, for, having cast off all duty towards other human beings, there remained a duty towards him, and something whispered me that I was betraying it in pledging myself to keep your counsel. Since that day no man is so near to him as you. You tread behind his every footstep. You are beside him, sleeping and waking. You search his thoughts. You burrow and rankle in his heart! Your clutch is on his life, and you cause him to die daily a living death, and still he knows you not. In permitting this I have surely acted a false part by the only man to whom the power was left me to be true!"