rest, though carefully concealing it--ran under the point at its
farther end. The sea-mouth of the cave was protected from the full
swell of the ocean by some huge detached rocks rising a little way
offshore, which caught and broke the waves. The distance was about
sixty feet from mouth to mouth, and back of this transverse passage
a great vaulted chamber stretched far under the land. The walls of
the chamber rose sheer to a height of fifteen feet or more, when a
broad ledge broke their smoothness. From this ledge opened cracks
and fissures under the roof, suggesting in the dim light infinite
possibilities in the way of hiding-places. Besides these, a wide
stretch of sand at the upper end of the chamber, which was bare at
low tide, invited exploration. At high water the sea flooded the
cavern to its farthest extremity and beat upon the walls. Then
there was a great surge and roar of waters through the passage from
mouth to mouth, and at turn of tide--in hopeful agreement with the
legend--the suck and commotion of a whirlpool, almost, as the sea
drew back its waves. Now and again, it was to prove, even the
water-worn pavement between the two archways was left bare, and one
could walk dry-shod along the rocks under the high land of the
point from the beach to the cave. But this was at the very bottom
of the ebb. Mostly the lower end of the cave was flooded, and the
explorers went back and forth in the boat.

A certain drawback to boating in our island waters was the presence
of hungry hordes of sharks. You might forget them for a moment and
sit happily trailing your fingers overboard, and then a huge moving
shadow would darken the water, and you saw the ripple cut by a
darting fin and the flash of a livid belly as the monster rolled
over, ready for his mouthful. I could not but admire the
thoughtfulness of Mr. Tubbs, who since his submergence on the