It was a sad moment when Mary arose to say good-bye. Joan, too, was to accompany her, and the grief at parting with her was extreme. Again and again the children clung round her, entreating her not to leave them; and she herself half faltered in her resolution. That lonely rock, that rude cabin, had been her refuge in the darkest hour of her life, and she felt the superstitious terror of her class at now deserting them. “Come, come, dear Joan, remember that you have a home now that you can rightfully return to,” whispered Mary. “It is not in shame, but in honor, that you go back to it.” It was already dark ere they left the Brannocks: a long, heavy swell, too, the signs of a storm, coming from the westward, made the boatmen eager to hasten their departure. As yet, however, the air was calm and still, but it was with that oppressive stillness that forebodes change. They hoisted their sail, but soon saw that they must, for a while at least, trust to their oars. The unbroken stillness, save by the measured stroke of the rowers, the dense dark atmosphere, and the reaction, after a day of toil and an event of a most moving kind, so overcame Mary that, leaning on Joan's shoulder, she fell off fast asleep. For a while Joan, proud of the burden she supported, devoted all her care to watch and protect her from the night air; but at last weariness stole over herself, and she dropped off to slumber. Meanwhile the sea was rising; heavy waves struck the boat, and washed over her in sheets of spray, although no wind was stirring. “We 'll have rain, or a gale of wind before long,” said one of the men. “There 's some heavy drops falling now,” muttered another. “Throw that sail over Miss Mary, for it will soon come down heavily.” A loud clap of thunder burst forth, and as suddenly, like a torrent, the rain poured down, hissing over the dark sea, and filling the air with a dull, discordant noise. Still they slept on, nor heard nor felt aught of that gathering storm. “There now, sure enough, it 's coming,” cried a boatman, as the sail shook tremulously; and two great waves, in quick succession, broke over the bow. “We'll have to run for Innishmore,” said another, “and lucky if we get there before it comes on worse.” “You ought to wake her up, Loony, and ask her what we are to do.” “I 'll make straight for the harbor of Kilkieran,” replied the helmsman. “The wind is with us, and she's a good sea-boat. Take in the jib, Maurice, and we'll shorten all sail on her, and--” The rest of his speech was drowned in the uproar of a tremendous sea, which struck the boat on her quarter and nearly overset her. Not another word was now uttered, as, with the instinct of their calling, they set about to prepare for the coming conflict. The mainsail was quickly lowered and reefed, the oars and loose spars secured, and then, seating themselves in the bottom of the boat, they waited in silence. By this time the rain had passed over, and a strong wind swept over the sea.