The Sylph kept just far enough in the rear of the Emden to be out of range. After three hours, it became apparent that the commander of the German cruiser was aware that he was being followed. He slowed down, waiting the Sylph to come within range and give battle.

But while Lord Hastings was a brave man, he had no idea of accepting battle now. For had the day gone against him, the Emden would have been able to disappear once more. With the superior speed of the Sylph, Lord Hastings knew that he could remain on the trail, using his wireless to pick up some British vessel big enough to put an end to the "Terror of the Sea."

Accordingly, the Sylph also slowed down. After waiting in vain for the little scout cruiser to approach closer, the Emden again set out on her course, at full speed. The Sylph also quickened her pace, and the Emden was unable to shake her off.

Then the Emden slowed down again. So did the Sylph. The wireless operator approached Lord Hastings with a message.

Lord Hastings read it aloud:

"Remain where you are till I come up, or I shall sink you.
Signed, von Mueller."

Followed by the two lads Lord Hastings made his way to the wireless room, and ticked off this message himself:

"The Emden is doomed. Signed, Hastings."

CHAPTER XXI

ON THE TRAIL