"Perhaps they are in trouble," answered the captain, gravely.
He fired .his pistol as a signal, and at last came an answering shot from the lower end of the island. At once they hurried in that direction, only to find themselves cut off by a stretch of impassable marsh land.
"Reckon as how we'll have to go around," observed Billy Dill. "If we try to go through thet we'll git stuck, fer sartin!"
Going around was not so easy, and it took them nearly half an hour to cover a mile. Then the captain discharged his pistol once more, and a'minute later came an answering shot but a short distance away.
"I see them—at the top of the hill!" cried Dave, and, looking ahead, the others discovered Phil and Roger at the top of the slight rise of ground, waving their handkerchiefs to attract attention. Soon the two parties were together.
"What's the news?" cried Captain Marshall, looking around to see if anybody else was present.
"No news," answered Phil. He gazed at them curiously. "What's up? You look rather excited!"
"Didn't you send for us?" gasped Dave.
"Send for you? What do you mean?" queried Roger.
"The first mate said you sent a native to the
