“Shall I help you in?” said Leslie.

“No, thank ye, I’m all right. As I am in, I may as well have a swim.”

“No, no, Harry, don’t be foolish,” cried Louise.

“There, you’d better hitch a rope round me, and tow me behind, or I shall swamp the boat.”

“Harry! what are you going to do?” cried Madelaine, as he looked his hold of the gunwale, and began to swim away.

“Wait a bit and you’ll see,” he cried. “Leslie, you take care of the boat. I shan’t be long.”

“But, Harry—”

“All right, I tell you.”

“Where are you going?”

“In here,” he shouted back, and he swam straight to the low opening at the foot of the massive granite cliff, paddled a little at the mouth till the efflux of water was over, and then as a fresh wave came, he took a few strokes, gave a shout, and to the horror of the two girls seemed to be sucked right into the opening.