The sound of the rifle brought another figure to the deck. Now it was Frank's turn and he acted instantly. Again there was a faint report and the second man toppled over.
"Two," said Frank quietly.
"Right, sir!" replied Edwards. "All ready for another, sir."
"I guess the next will be along in a minute," said Frank dryly. "Besides, it's about time for Jack and Williams to take a hand in the game."
"Wouldn't want to leave them out all together, would we, sir," grinned Edwards.
"I should say not," replied Frank.
"No, sir; they wouldn't like that."
They waited patiently, but ten minutes passed and no other form appeared aboard the enemy.
"Guess Jack is playing a waiting game on the other side," muttered Frank. "Now, I wonder——"
There came an abrupt interruption to his thoughts.