"Well," said Lord Hastings, "I have no doubt that it can be arranged. I shall speak to Captain Dreyfuss at once."

"Is Lieutenant Hetherington alive?" asked Jack suddenly.

"No," replied Lord Hastings sadly, "we three are the sole survivors of the Sylph."

"But what are you doing in these waters?" demanded Frank.

"Well," replied Lord Hastings, "it's somewhat of a secret, but I don't mind telling you. I am on the trail of the German cruiser Emden."

"The Emden!" ejaculated both lads.

"Exactly. She has become a terrible menace to British shipping. While she is probably more than a match for the Sylph, if I come up with her I shall stay on her trail until I can raise a cruiser big enough to tackle her. My job is to find her, and, when I do, I guarantee I shall never lose sight of her."

"Good!" cried Jack. "Now, if you can fix it up with Captain
Dreyfuss, we are ready to go with you."

"Would you like to accompany me?" asked the commander of the
Sylph.

The lads signified their assent. An hour later they were all seated in Captain Dreyfuss' cabin aboard the Marie Theresa.