At this time the party stood upon one of the rocks.
Suddenly Mary pointed down at the water, through which, all around their position, a number of dark-looking fins now were seen, moving hither and thither.
"What are those things?" she inquired.
"Sharks!" answered Harry and Turk, as they simultaneously drew the young girl upon the raft.
[CHAPTER IX.]
DRIVEN AWAY.
The water kept rising higher.
Meanwhile, the sharks swam all round the rocks, and the raft, now and then leaping forth, as if to clutch at the party.
The sight of these ugly-looking creatures, with their long heads, sharp fins, teeth, and dull, bloodshot eyes, inspired Mary with the most disagreeable sensations.