“I beg your pardon,” began the doctor, in superior tones.

“And what the devil do you want?” demanded the second officer; “who told you to come along here?”

“I want to know what this means,” said the doctor, fiercely. “How dare you kidnap us on your beastly bilge-tank?”

“Man’s mad,” murmured the astonished second officer.

“Insufferable outrage!” continued the doctor. “Take us back to Melbourne at once.”

“You get for’ard,” said the other sharply; “get for’ard, and don’t let me have any more of your lip.”

“I want to see the captain of this ship,” cried the doctor; “go and fetch him at once.”

He saw another tatterdemalion coming toward him.