"Mother is asleep," the girl answered briefly, and then, resting her chin upon her hands, she fixed her great dark eyes upon the glowing logs. She was Dan's foster-sister, eighteen years of age, though she looked hardly more than sixteen; a shy, slender, girl, lovely with a wild, unusual charm. To Tom she had always been a silent elfin creature, delightful as their playmate when a child, but now though still so familiar, she seemed in an odd way, to grow more remote. Apparently she liked to sit with them on these winter evenings in the deserted bar, when Mrs. Frost had gone to bed; and to listen to their conversation, though she took little part in it.

As Dan resumed his seat, he looked at her with evident concern, for she was shivering as she sat so quietly by the fireside.

"Are you cold, Nance?" he asked.

"A little," she replied. "I was afraid in the parlour with Mother asleep, and the wind and the waves roaring so horribly."

"Afraid?" exclaimed Tom, with an incredulous laugh. "I never knew you to be really afraid of anything in the world, Nancy."

She turned her dark eyes upon him for the moment, with a sharp inquisitive glance which caused him to flush unaccountably. An answering crimson showed in her cheeks, and she turned back to the fire. The colour fled almost as quickly as it had come, and left her pale, despite the glow of firelight.

"I was afraid—to-night," she said, after a moment's silence.

Suddenly there came the sound of a tremendous knocking on the door which opened from the bar into the outer porch, and all three started in momentary alarm.

Dan jumped to his feet. "Who's that?" he cried.

Again came the vigorous knocking. He ran across the room, let down the great oaken beam, and opened the door to the night and storm.