there if the roof is so low down?"

"Why, he couldn't, mate. I reckon they must have called it Giant's
Cave 'cause it's so big, an' not 'cause any giant man lived there."

"Let's go in," said the girl again. "I'd like to 'splore it."

"All right," replied the sailor. "It'll be cooler in there than out
here in the sun. We won't go very far, for when the tide turns we
mightn't get out again." He picked up the oars and rowed slowly
toward the cave. The black archway that marked its entrance seemed
hardly big enough to admit the boat at first, but as they drew
nearer, the opening became bigger. The sea was very calm here, for
the headland shielded it from the breeze.

"Look out fer your head, Trot!" cautioned Cap'n Bill as the boat
glided slowly into the rocky arch. But it was the sailor who had to
duck, instead of the little girl. Only for a moment, though. Just
beyond the opening the cave was higher, and as the boat floated into
the dim interior they found themselves on quite an extensive branch
of the sea. For a time neither of them spoke and only the soft
lapping of the water against the sides of the boat was heard. A
beautiful sight met the eyes of the two adventurers and held them
dumb with wonder and delight.

It was not dark in this vast cave, yet the light seemed to come from
underneath the water, which all around them glowed with an exquisite
sapphire color. Where the little waves crept up the sides of the
rocks they shone like brilliant jewels, and every drop of spray
seemed a gem fit to deck a queen. Trot leaned her chin on her hands
and her elbows on her lap and gazed at this charming sight with real
enjoyment. Cap'n Bill drew in the oars and let the boat drift where
it would while he also sat silently admiring the scene.

Slowly the little craft crept farther and farther into the dim
interior of the vast cavern, while its two passengers feasted their
eyes on the beauties constantly revealed. Both the old seaman and
the little girl loved the ocean in all its various moods. To them it
was a constant companion and a genial comrade. If it stormed and
raved, they laughed with glee; if it rolled great breakers against
the shore, they clapped their hands joyfully; if it lay slumbering
at their feet, they petted and caressed it, but always they loved
it.

Here was the ocean yet. It had crept under the dome of overhanging
rock to reveal itself crowned with sapphires and dressed in azure
gown, revealing in th