How tediously slow were the movements of the raft.
On it went, however, apparently nearing the land every moment.
At length it seemed scarcely a mile distant.
"We will soon be there, now," exclaimed Mary.
Suddenly a wail went up from the raft, a long, mournful wail—a half shriek of astonishment, and bitter disappointment.
The supposed land had suddenly vanished—blown away by a mere puff of air.
Alas! it was nothing but a fog bank!