The door was quickly opened and closed, and there stood before him face to face, quiet, intent upon him, with the light of a smile on his features, and a cautionary finger on his lip, Sydney Carton.

There was something so bright and remarkable in his look, that, for the first moment, the prisoner misdoubted him to be an apparition of his own imagining. But, he spoke, and it was his voice; he took the prisoner’s hand, and it was his real grasp.

“Of all the people upon earth, you least expected to see me?” he said.

“I could not believe it to be you. I can scarcely believe it now. You are not”—the apprehension came suddenly into his mind—“a prisoner?”

“No. I am accidentally possessed of a power over one of the keepers here, and in virtue of it I stand before you. I come from her—your wife, dear Darnay.”

The prisoner wrung his hand.

“I bring you a request from her.”

“What is it?”

“A most earnest, pressing, and emphatic entreaty, addressed to you in the most pathetic tones of the voice so dear to you, that you well remember.”

The prisoner turned his face partly aside.

“You have no time to ask me why I bring it, or what it means; I have no time to tell you. You must must comply with it—take off those boots you wear, and draw on these of mine.”

There was a chair against the wall of the cell, behind the prisoner. Carton, pressing forward, had already, with the speed of lightning, got him down into it, and stood over him, barefoot.

“Draw on these boots of mine. Put your hands to them; put your will to them. Quick!”

“Carton, there is no escaping from this place; it never can be done. You will only die with me. It is madness.”

“It would be madness if I asked you to escape; but do I? When I ask you to pass out at that door, tell me it is madness and remain here. Change that cravat for this of mine, that coat for this of mine. While you do it, let me take this ribbon from your hair, and shake out your hair like this of mine!”

With wonderful quickness, and with a strength both of will and action, that appeared quite supernatural, he forced all these changes upon him. The prisoner was like a young child in his hands.

“Carton! Dear Carton! It is madness. It cannot be accomplished, it never can be done, it has been attempted, and has always failed. I implore you not to add your death to the bitterness of mine.”

“Do I ask you, my dear Darnay, to pass the door? When I ask that, refuse. There are pen and ink and paper on this table. Is your hand steady enough to write?”

“It was when you came in.”

“Steady it again, and write what I shall dictate. Quick, friend, quick!”

Pressing his hand to his bewildered head, Darnay sat down at the table. Carton, with his right hand in his breast, stood close beside him.

“Write exactly as I speak.”

“To whom do I address it?”

Sir Nathaniel switched on the light again, and in its comforting glow they began to talk freely.

“She has diabolical cunning,” said Sir Nathaniel. “Ever since you left, she has ranged along the Brow and wherever you were accustomed to frequent. I have not heard whence the knowledge of your movements came to her, nor have I been able to learn any data whereon to found an opinion. She seems to have heard both of your marriage and your absence; but I gather, by inference, that she does not actually know where you and Mimi are, or of your return. So soon as the dusk fails, she goes out on her rounds, and before dawn covers the whole ground round the Brow, and away up into the heart of the Peak. The White Worm, in her own proper shape, certainly has great facilities for the business on which she is now engaged. She can look into windows of any ordinary kind. Happily, this house is beyond her reach, if she wishes—as she manifestly does—to remain unrecognised. But, even at this height, it is wise to show no lights, lest she might learn something of our presence or absence.”

“Would it not be well, sir, if one of us could see this monster in her real shape at close quarters? I am willing to run the risk—for I take it there would be no slight risk in the doing. I don’t suppose anyone of our time has seen her close and lived to tell the tale.”

Sir Nathaniel held up an expostulatory hand.

“Good God, lad, what are you suggesting? Think of your wife, and all that is at stake.”

“It is of Mimi that I think—for her sake that I am willing to risk whatever is to be risked.”

Adam’s young bride was proud of her man, but she blanched at the thought of the ghastly White Worm. Adam saw this and at once reassured her.

“So long as her ladyship does not know whereabout I am, I shall have as much safety as remains to us; bear in mind, my darling, that we cannot be too careful.”

Sir Nathaniel realised that Adam was right; the White Worm had no supernatural powers and could not harm them until she discovered their hiding place. It was agreed, therefore, that the two men should go together.

When the two men slipped out by the back door of the house, they walked cautiously along the avenue which trended towards the west. Everything was pitch dark—so dark that at times they had to feel their way by the palings and tree-trunks. They could still see, seemingly far in front of them and high up, the baleful light which at the height and distance seemed like a faint line. As they were now on the level of the ground, the light seemed infinitely higher than it had from the top of the tower. At the sight Adam’s heart fell; the danger of the desperate enterprise which he had undertaken burst upon him. But this feeling was shortly followed by another which restored him to himself—a fierce loathing, and a desire to kill, such as he had never experienced before.

They went on for some distance on a level road, fairly wide, from which the green light was visible. Here Sir Nathaniel spoke softly, placing his lips to Adam’s ear for safety.