sight. He seemed to be taking advantage of the shelter afforded by the
islands, as occasionally we came quite near their rocky shores, and at
one point he showed us a small hole in the rock which was only a few
feet above the sea; he told us it formed the entrance to a cave in
which he had often played when, as a boy, he lived on that island.

[Illustration: DUNNET HEAD AND LIGHTHOUSE.]

The time had now arrived to cross the Pentland Firth and to sail round
Dunnet Head to reach Thurso. Fortunately the day was fine, and the
strong breeze was nothing in the shape of a storm; but in spite of these
favourable conditions we got a tossing, and no mistake! Our little ship
was knocked about like a cork on the waters, which were absolutely
boiling and foaming and furiously raging without any perceptible cause,
and as if a gale were blowing on them two ways at once. The appearance
of the foaming mass of waters was terrible to behold; we could hear them
roaring and see them struggling together just below us; the deck of the
sloop was only a few feet above them, and it appeared as if we might be
swallowed up at any moment. The captain told us that this turmoil was
caused by the meeting of the waters of two seas, and that at times it
was very dangerous to small boats.

Many years ago he was passing through the Firth with his boat on a
rather stormy day, when he noticed he was being followed by another boat
belonging to a neighbour of his. He could see it distinctly from time to
time, and he was sure that it could not be more than 200 yards away,
when he suddenly missed it. He watched anxiously for some time, but it
failed to reappear, nor was the boat or its crew ever seen or heard of
again, and it was supposed to have been carried down by a whirlpool!