“Then I shall try to make myself clear.”

“That will be good of you.”

The man’s next words almost took Jack off his feet.

“When you hear from the Endymion, let me know at once. That is all I ask you.”

“Then you are expecting to hear from the yacht to-night?” asked Jack wonderingly. It was an unfathomable puzzle to him that this somewhat sinister-looking passenger should have so accurate a knowledge of the yacht’s whereabouts; providing, of course, that he was as certain as he seemed.

“I am expecting to hear from her to-night. Should have heard before, in fact,” was the brief rejoinder.

“There are friends of yours on board?” asked Jack.

“Never mind that. If you do as I say—notify me the instant you get word from her, you will be no loser by it.”

“Very well, then,” rejoined Jack. “I’ll see that you get first word after the captain.”

Jarrold took a step forward and thrust his face close to the boy’s.