"Turn him over to the British authorities at the first opportunity. He is deserving of whatever punishment he shall receive. But in the meantime we must not let him suspect our true identity for he may be of use to us."
The lads nodded.
"Now," said Lord Hastings, "we may as well put about and run for Ostend."
Frank gave the command to Edwards, at the wheel, and the U-16 came about and headed east. Frank and Jack went below to their quarters, leaving Lord Hastings alone on the bridge.
"There is no use talking," said the latter. "It seems rather peculiar to be sailing under the German flag."
"And that's no joke," Jack agreed. "I hope we will not have to do it long."
It was late in the evening when the submarine approached Ostend, where it was known that the Germans had established a submarine base. The U-16 went along slowly, for Lord Hastings was not certain of his bearings.
Suddenly there came a hail across the water and a light flashed upon the U-16. In response to a command Lord Hastings brought the vessel to a halt.
"Who are you?" came the challenge in the darkness.
"U-16, Captain Tarlenhein," Lord Hastings shouted back.