We were now hoping, as the wind was off shore, to stand due south for Aberdeen, which we were all anxious to see.  We had sighted Slaines Castle, standing out solitary and grand on the very edge of the crag, when the wind suddenly backed round to the southward, and in a short time began to blow very hard.  Dark clouds, which had been gathering thickly in the horizon to the south-east, came careering on over the blue sky.  In spite of the heavy sea which was getting up, we held our course, standing away from the land, intending to tack again when we could to fetch Aberdeen.  By the way the Dolphin was tumbling about I could readily understand how we must have appeared to her.  Dick began to show signs of being far from happy, and Nat's cheerfulness entirely left him.  Papa sent him down below, and told him to turn in.  Dick, however, braved it out, but grew more and more yellow and woebegone.