"They must be at the bottom of the sea," said Frank, in some despair. "I should have thought to have made them fast."
"Never mind that," said Jack. "The question now is, what are we going to do?"
"Well, you know as much about it as I do," replied Frank. "What are we going to do?"'
"It looks to me as though we should have to drift and take a chance of being, picked up," returned Jack.
"Or be blown up by a floating mine," said Frank.
"That's a chance we shall have to take," said Jack calmly. "You should have thought of that before you bored a hole through that mine on the submarine."
Frank did not reply. At length he rose to his feet and took off his coat. Then he turned to Jack.
"Give me yours," he said briefly.
Jack obeyed without question.
Tying the two coats securely together, Frank loosened one of the thwarts in the little boat. He pulled some strong string from his pocket and soon had improvised a little sail. Then tying one sleeve to a cleat on one side and another sleeve to a cleat on the other he soon had his sail bellying before the stiff breeze.