She was about to sign her name, but did not do so; it was better that they should remain strangers to each other.

She went out softly, crossed the corridor on tip-toe, pushed the envelope under his door, then knocked very gently and darted back to her own room. Listening, with a heart that beat like a sledge-hammer falling on an anvil, she heard him open the door, heard it close again; she waited almost; breathlessly, and presently his step crossed the corridor, and a piece of paper slid to her feet. She picked it up and read:

"To refuse your generous gift, to disobey your command—for to me it is an absolute command—would be ungrateful; would be worse. I feel as if you had taken my life into your hands and had the right to dispose of it. I am going. If I escape——Oh, I can't write any more; but I know you will understand. You are the most wonderful girl, the bravest, the most generous, in the whole world Good-bye."

Celia sank into the chair and, with the scrawl tightly clenched in her hand, burst into tears. She sat and waited and listened; a quarter of an hour dragged by; footsteps, some dragging and stealthy, some light and free, passed up and down the stairs, and every step made her heart leap with apprehension. Had he gone? Oh, why had he not gone? There was danger in every moment. Presently she heard a faint, almost inaudible knock at her door; she rose quickly and opened it a little way; no one was standing outside, the corridor was empty; but she heard someone descending the stairs below her. She took a few steps out and looked down.

It was he. At the bend of the stairs, he paused and looked up; the light of the murky, wire-globed gas-jet fell on him and she saw the pallor of his face; saw something else, something that remained with her while life lasted—a look, that expression in his eyes, for which many a woman has been willing to give body and soul. He gazed up at her in silence for a moment; then, with a gesture of the hand which conveyed farewell and gratitude, he moved on and disappeared.

Celia stood there until his footsteps had ceased to sound, and she heard the outer door close softly, then she went back to her room and covered her face with her hands; perhaps she was praying; if so, it was unconsciously; but she still listened for the detectives, the police-officers who might be coming. The strain was almost unendurable, and it was with a strange, inexplicable relief that her suspense was brought to an end by the sound of someone approaching the opposite door and knocking. She rose, trembling, and listened, as she had listened so many times that eventful night. The knock was repeated three times; she heard the visitor—a detective, she didn't doubt—try the handle of the opposite door. Then, to her horror, she heard him move across the corridor and knock at her door. The horror was so great that she felt as if every limb were benumbed and paralyzed; her mouth felt so dry as to be incapable of speech. The knock came again, and, with a great effort, she managed to say:

"Who is there?"

"Pardon me. I wish to speak to you," came the response in a man's voice.

What should she do? The detective would be made suspicious by her agitation, would question her, in all probability would drag from her some information which would enable him to track and arrest the fugitive. And yet she could not refuse to speak to him. Clenching her hands and setting her teeth hard, she forced herself to an appearance of self-composure and opened the door; an elderly man, scrupulously dressed, after the fashion of a solicitor or well-to-do City man, confronted her. He raised his hat and, in a grave and apologetic manner, said:

"I beg your pardon. I am sorry to intrude upon you, trouble you. Can you tell me, madam——? Do you know your opposite neighbour; a young man who lives at No. 106 there?"