There was a lull in the wind just then, but the two lads had clung there, completely awe-stricken, as a huge hill of water had heaved up, and fallen on the outer buttresses of the rock, which quivered under the shock. Then there was a roar of many waters, a wild rushing and booming sound, and the wind blew harder.

They looked out into the awful blackness, which seemed transparent, glanced up at the quivering stars, once more paused to listen again to the tremendous impact of the waves that came regularly rolling in, and then, taking advantage of a lull, they descended to where the gun had been mounted.

The change was wonderful. They had not descended fifty feet, but it was into complete shelter. The wind was rushing over their heads, and the waves were thundering in far below, but the noise sounded dull and distant, and they sat down, breathing freely, and rubbing their spray-wet faces.

“No,” said Syd, quietly; “no fear.”

“What of?”

“The rock being swept away; it would have gone before now.”

“Well, I’m beginning to think we’re safer here than on board,” said Roylance.

“Don’t say that,” cried Syd, excitedly. “You don’t think there’s any danger to the frigate, do you?”

“No,” said Roylance, sharply. “Come on down now, and let’s get something to eat.”

They walked steadily back towards where the fire was glowing and burning briskly in the sheltered depth of the chasm, casting curious lights and reflections on the rocks to right and left, and showing plainly the figure of the man on the watch beside the farther gun, and the spars rigged up at his side.