"Got your pocket compass, Frank?" asked Jack.
"Yes."
"Keep your course due south, then."
"All right, sir," said Frank, with a smile.
"Harris," said Jack, "I want you to stand guard over these sailors for a few minutes. I want to have a talk with our latest arrival. I'll be with you in a few minutes."
Harris stepped forward.
"Ought to have a gun, I suppose," he said.
"I guess not," said Jack. "You and I together should be able to hold these fellows in check."
"Sure; unless they hit us over the head with an oar when we're not looking."
"But one of us must always be looking," said Jack, quietly.