“It will be down a good bit in half an hour,” said the man, “and we'll be stranded here as like as not. These are bad rocks when the tide is low; we must turn and get out of this, miss, in a quarter of an hour at the farthest.”

“Oh, I could just do it in a quarter of an hour,” said Nora.

She jumped up, and the next moment had sprung out of the boat into the water, which nearly reached up to her knees.

“Oh, Nora! Nora! you'll be lost; you'll slip and fall in that awful darkness, and we'll never see you again,” said Biddy, with a cry of terror.

“No, no; let her go,” said Andy. “There ain't no fear, miss; you have but to go straight on, holding your candle and avoiding the rocks to your left, and you'll come to the opening. Be as quick as you can, Miss Nora; be as quick as you can.”

His voice had a queer note in it. Nora gave him a look of gratitude, and proceeded on her dangerous journey. Her one fear was that the candle might go out; the flame flickered as the air got less good; the hot grease scalded her fingers; but suddenly a breeze of fresher air reached her, and warned her that she was approaching the aperture. There came a little puff of wind, and the next moment the brave girl found herself in total darkness. The candle had gone out. Just at that instant she heard, or fancied she heard, a splash behind her in the water. There was nothing for it now but to go forward. She resolved not to be terrified. Perhaps it was a water-rat; perhaps it was the Banshee. Her heart beat high; still she had no fear. She was going to plead for her father. What girl would be terrified with such a cause in view? She walked slowly and carefully on, and at last the fresher air was followed by a welcome gleam of light; she was approaching the opening. The next moment she had found it. She stood nearly up to her knees in the water; the shaft of moonlight was piercing down into the cave. Nora went and stood in the moonlight. The hole at the top was little more than a foot in width; there was a chasm, a jagged chasm, through which the light came. She could see a bit of cloudless sky, and the cold moonlight fell all over her.

“Oh, Banshee!—Lady Spirit who belongs to our house, come and speak to me,” cried the girl. “Come from your home in the rock and give me a word of comfort. A dark time is near, and we implore your help. Come, come, Banshee—it is the O'Shanaghgans who want you. It is Nora O'Shanaghgan who calls you now.”

The sound of a laugh came from the darkness behind her, and the next instant the startled girl saw the big form of Andy Neil approaching.

“Don't you be frightened, Miss Nora,” he said. “I aint the Banshee, but I am as good. Faix, now, I want to say something to you. I have come here for the purpose. There! don't be frightened. I won't hurt ye—not I; but I want yez to promise me something.”

“What is that?” said Nora.