The German launch had the heels of the D-16’s small boat, and soon outdistanced her. Convinced at last that pursuit was useless, Lord Hastings ordered that the chase be abandoned. The launch was brought about and headed slowly back toward the submarine.

“Poor Frank,” said Jack. “I always knew his rashness would get him in trouble some day. I am afraid his days of fighting are over.”

“While there is life there is hope,” said Lord Hastings calmly. “Perhaps we may be able to figure out some means of rescue.”

“A great chance,” said Jack sarcastically. “Right in the heart of the enemy’s country? I don’t think so. What do you suppose they will do with him?”

“Hold him as a prisoner of war.”

“Then there is no danger of his being shot?”

“I should say not.”

“Well, that’s not so bad. Still, it is pretty tough for him to be cooped up for the next few years.”

Aboard the D-16 once more, all went below immediately and Lord Hastings gave the command to submerge.

“They know we are here now,” he said, “and they’ll be after us. Therefore we had better get down. We’ll stay around for a while and see if we cannot be of some help to Frank. We may be able to maneuver so as to avoid detection.”