"By those in whom I trust," Mr. Fentolin told him sternly. "You are a friend of Reginald Kinsley. You met him in Norwich the other day - secretly. Kinsley's chief is a member of the Government. He is one of those who will find eternal obloquy if The Hague Conference comes to a successful termination. For some strange reason, I am supposed to have robbed or harmed the one man in the world whose message might bring to nought that Conference. Are you here to watch me, Mr. Hamel? Are you one of those who believe that I am either in the pay of a foreign country, or that my harmless efforts to interest myself in great things are efforts inimical to this country; that I am, in short, a traitor?"
"You must admit that many of your actions are incomprehensible,"
Hamel replied slowly. "There are things here which I do not understand - which certainly require explanation."
"Still, why do you make them your business? "Mr. Fentolin persisted. "If indeed the course which I steer is a harmless one," he continued, with a strange new glitter in his eyes, "then you are an impertinent stranger to whom my doors cannot any longer be open.
If you have taken advantage of my hospitality to spy upon me and my actions, if indeed you have a mission here, then you can carry it with you down into hell!"
"I understand that you are threatening me?" Hamel murmured.
Mr. Fentolin smiled.
"Scarcely that, my young friend. I am not quite the obvious sort of villain who flourishes revolvers and lures his victims into secret chambers. These words to you are simply words of warning.
I am not like other men, neither am I used to being crossed. When I am crossed, I am dangerous. Leave here, if you will, in safety, and mind your own affairs; but if you show one particle of curiosity as to mine, if you interfere in matters which concern me and me only, remember that you are encircled by powers which are entirely ruthless, absolutely omnipotent. You can walk back to the Tower to-night and remember that there isn't a step you take which might not be your last if I willed it, and never a soul the wiser.
There's a very hungry little mother here who takes her victims and holds them tight. You can hear her calling to you now. Listen!"
He held up his finger. The tide had turned, and through the half-open window came the low thunder of the waves.
"You decline to share my evening," Mr. Fentolin concluded. "Let it be so. Go your own way, Hamel, only take care that your way does not cross mine."
He backed his chair slowly and pressed the bell. Hamel felt himself dismissed. He passed out into the hall. The door of the drawing-room stood open, and he heard the sound of Mrs, Fentolin's thin voice singing some little French song. He hesitated and then stepped in. With one hand she beckoned him to her, continuing to play all the time. He stepped over to her side.
"I come to make my adieux," he whispered, with a glance towards the door.
"You are leaving, then?" she asked quickly.
He nodded.
"Mr. Fentolin is in a strange humour," she went on, a moment later, after she had struck the final chords of her song. "There are things going on around us which no one can understand. I think that one of his schemes has miscarried; he has gone too far. He suspects you; I cannot tell you why or how. If only you would go away!"
"What about Esther?" he asked quietly.
"You must leave her," she cried, with a little catch in her throat.
"Gerald has broken away. Esther and I must carry still the burden."
She motioned him to go. He touched her fingers for a moment.
"Mrs, Fentolin," he said, "I have been a good many years making up my mind. Now that I have done so, I do not think that any one will keep Esther from me."
She looked at him a little pitifully, a little wistfully. Then, with a shrug of the shoulders, she turned round to the piano and recommenced to play. Hamel took his coat and hat from a servant who was waiting in the hail and passed out into the night.
He walked briskly until he reached the Tower. The wind had risen, but there was still enough light to help him on his way. The little building was in complete darkness. He opened the door and stepped into the sitting-room, lit the lamp, and, holding it over his head, went down the passage and into the kitchen. Then he gave a start. The lamp nearly slipped from his fingers. Kneeling on the stone floor, in very much the same attitude as he had found her earlier in the day, Hannah Cox was crouching patiently by the door which led into the boathouse, her face expressionless, her ear turned towards the crack. She was still listening.