"I agree with you," said Frank. "How long a march is it, Captain
Jack?"
"If we leave here two hours before dark we will reach the base soon after midnight," was the reply; "but if you will allow me, I have a plan to suggest."
"Let's hear it, Captain," said Jack.
"To my way of thinking," said Captain Jack, "it would be better if we attack from two places."
"Two places?" echoed Frank.
"Yes. My plan would be to send the bulk of the men afoot, while I pick a crew for my submarine and strike from the sea."
"By Jove!" said Jack. "A first class idea! But will not the German submarine base be mined?"
"It wasn't when I was there before," said Captain Jack significantly.
"Otherwise I would not have come out whole with a submarine."
"That's true," said Jack. "Well, I agree with you. Yours is by far the best plan. How many men do you need aboard the submarine?"
"Not more than fifteen. The others will go a foot."