"But now," said Ruth hastily, following up her advantage, "we must hurry and get back to the others. Father will begin to worry about me."

Anguish smote Drew. Ruth had evidently not the slightest idea that anything stood between her and freedom. How could he break the dreadful news to her? He felt like an executioner compelled by some awful fate to slay the one he loved most dearly.

"You mustn't look at me after we get outside until I've had a chance to arrange my hair," she warned him gaily. "I must look a perfect fright."

Every innocent word was a stab that went straight to the man's heart.

His mind was a tumult of warring emotions. At first there had been a wild delight when he had found himself in the presence of his heart's desire, after he feared that he would never hear her voice again. In the excitement of bringing her back to consciousness and listening to her story, the fearful peril in which they stood had been relegated to the background. Now it came back at him with re-doubled force, and he had to close his lips tightly to suppress a groan.

He could have died alone, if escape had proved impossible, and met death like a man. But to have to watch Ruth die—die perhaps after enduring unspeakable suffering—the mere thought threatened to drive him mad.

And she was here because she had feared that he might encounter danger and wanted to meet it at his side when it came. But for that courageous impulse, she might at this moment be safe and sound out under the open sky instead of being buried alive in this island tomb.

Moreover her very presence here made their danger all the greater. There was little chance now of help coming to them from the outside. No doubt Tyke and Captain Hamilton would grow uneasy at their absence and look them up—probably they were hunting for them now. But they did not know of the existence of the cave, and now that the entrance was closed there was not the slightest chance of finding them. They would explore the mountain side, search every foot of the island, but their quest would be doomed to failure from the beginning.

While these thoughts had been hurrying through his tortured brain, Ruth had arranged her disordered hair as best she could in the darkness and stood ready to go.

"Well, Allen, what are we waiting for?" she asked. "You men are always complaining that the girls keep you waiting, but this time you're the guilty one."