The man struggled to his feet and planted himself resolutely at his captain’s side. All this was the work of a moment. With the next incoming wave, which was happily much smaller than the preceding one, four men were flung up on the sand; but they seemed half dead, and made no effort to save themselves. Grim, who thought he saw a glimmer of brass buttons in the water, dashed forward and seized Olaf by the collar, just as he would have been sucked back by the undertow. He bore him up on the shore, while the boatman came dragging two of his unconscious comrades out of the roaring surf. One was still missing; but as the next wave that broke in tumult at their feet showed no trace of him, they knew that he was beyond the reach of human help.

The work of resuscitating the men was a long and tedious one; but Grim and Magnus both worked with their hearts in their throats, yet with a resolution which scorned fatigue. Harry revived the moment they had poured a glass of brandy down his throat, and he soon recovered his spirits and volunteered his help. But the midshipman was both badly battered and had swallowed a quantity of water; and it was only after long and persistent efforts on Grim’s part that his breath came back to him. Their next thought was of fire; for the wind was raw and chill, and the last glimmer of daylight was vanishing. The problem, however, was a serious one, for there was not a tree growing on the island, except perhaps a few stunted juniper shrubs up in the crevices of the rocks. And to get at these in the dark was no easy undertaking. Nor was their situation in other respects an enviable one. Above them loomed the black cliff, and the surf was thundering at their feet. And there they were sitting, huddled together in a heap to keep each other warm, and yet shivering in their wet clothes, and thinking with horror of the long hours of the night which must pass before they could be rescued.

“Lads,” cried Magnus, suddenly extricating himself from Harry and Olaf’s embrace, “I am the only one of you who is not wet to the skin, and I am going to explore this island and see if we can’t scare up some fuel. To sit here hugging each other in the dark is a dismal sort of business, and I am not so affectionately disposed as the rest of you.”

“A mighty peart chap ye be, lad,” Grim said, raising his tall figure out of the group; “but ye had better let me crawl ahead, and ye keep astern o’ me. I know summat o’ the island and ye don’t know nothin’.”

“I’ll keep abreast of you, Grim,” Magnus replied, “but your stern would obscure my view; so take your bearings and let’s be off.”

“Ye be a mighty lively customer,” Grim grumbled, admiringly, giving the boy a caressing pat in the dark.

They had scarcely crawled fifty yards up the beach when their fumbling hands touched something cold and clammy, which felt like the nose of some aquatic animal. There came immediately a little chorus of whining barks, which was followed by a great flapping, as if something broad and wet struck against the stones.

“Thunder and lightning, Grim,” cried Magnus, “what sort of beasts are these?”